The present embodiments relate to articles of footwear and in particular to a sole system for articles of footwear.
Athletic shoes often have two major components, an upper that provides the enclosure for receiving the foot, and a sole secured to the upper. The upper may be adjustable using laces, hook-and-loop fasteners or other devices to secure the shoe properly to the foot. The sole has the primary contact with the playing surface. The sole may be designed to absorb the shock as the shoe contacts the ground or other surfaces. The upper may be designed to provide the appropriate type of protection to the foot and to maximize the wearer's comfort.
In one aspect an article of footwear includes a sole member having an outwardly facing surface and an inwardly facing surface disposed opposite of the outwardly facing surface, where the outwardly facing surface is disposed further from a foot than the inwardly facing surface when the article of footwear is worn. The sole member includes a hole extending from the outwardly facing surface to the inwardly facing surface. The article of footwear includes at least one protruding member including a proximal end portion and a distal end portion, where the distal end portion is disposed further from the foot than the proximal end portion when the article of footwear is worn. A portion of the at least one protruding member is disposed within the hole of the sole member. The at least one protruding member has a first position where the proximal end portion of the at least one protruding member is disposed a first distance from the inwardly facing surface of the sole member. The at least one protruding member has a second position where the proximal end portion of the at least one protruding member is disposed a second distance from the inwardly facing surface of the sole member and where the at least one protruding member extends away from the sole member in the second position. The proximal end portion is disposed closer to the inner surface of the sole member than the distal end portion when the at least one protruding member is in the first position and the second distance is greater than the first distance.
In another aspect, an article of footwear includes a sole member having an outwardly facing surface and an inwardly facing surface disposed opposite of the outwardly facing surface, where the outwardly facing surface is disposed further from a foot than the inwardly facing surface when the article of footwear is worn. The article of footwear includes a protruding member assembly including a first protruding member and a second protruding member. The protruding member assembly further includes a connecting portion including a first end portion attached to the first protruding member and a second end portion attached to the second protruding member. The sole member including a first hole and a second hole. The first protruding member extends through the first hole and the second protruding member extends through the second hole. The connecting portion is disposed on the inwardly facing surface of the sole member. The connecting portion allows the first protruding member to move a first distance while the second protruding member moves a second distance, and the first distance is greater than the second distance.
In another aspect, an article of footwear includes a sole member having an outwardly facing surface and an inwardly facing surface disposed opposite of the outwardly facing surface, where the outwardly facing surface is disposed further from a foot than the inwardly facing surface when the article of footwear is worn. The sole member has a vertical direction that extends between the outwardly facing surface and the inwardly facing surface. A protruding member assembly includes a plurality of protruding members connected together by a plurality of connecting portions. The plurality of protruding members further include proximal end portions that provide an inner surface for the protruding member assembly and the plurality of protruding members include distal end portions that provide an outer surface for the protruding member assembly. The sole member includes a plurality of holes to receive the plurality of protruding members such that the distal end portions of the plurality of protruding members extend away from the outwardly facing surface. The plurality of protruding members can move relative to the sole member in the vertical direction and the geometry of the inner surface of the protruding member assembly changes as the plurality of protruding members move in response to forces applied to the outer surface of protruding member assembly.
Other systems, methods, features and advantages of the embodiments will be, or will become, apparent to one of ordinary skill in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description and this summary, be within the scope of the embodiments, and be protected by the following claims.
The embodiments can be better understood with reference to the following drawings and description. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Moreover, in the figures, like reference numerals designate corresponding parts throughout the different views.
In some embodiments, article of footwear 100 may include upper 102 and sole system 110. Generally, upper 102 may be any type of upper. In particular, upper 102 may have any design, shape, size and/or color. For example, in embodiments where article 100 is a basketball shoe, upper 102 could be a high top upper that is shaped to provide high support on an ankle. In embodiments where article 100 is a running shoe, upper 102 could be a low top upper. In some embodiments, upper 102 could further include provisions for fastening article 100 to a foot, such as a lacing system (not shown) and may include still other provisions found in footwear uppers.
Sole system 110 is secured to upper 102 and extends between the foot and the ground when article 100 is worn. In different embodiments, sole system 110 may include different components. For example, sole system 110 may include an outsole, a midsole, and/or an insole. In some cases, one or more of these components may be optional.
Sole system 110 may provide one or more functions for article 100. For example, in some embodiments, sole system 110 may be configured to provide traction for article 100. In addition to providing traction, sole system 110 may attenuate ground reaction forces when compressed between the foot and the ground during walking, running or other ambulatory activities. The configuration of sole system 110 may vary significantly in different embodiments to include a variety of conventional or non-conventional structures. In some cases, the configuration of sole system 110 can be selected according to one or more types of ground surfaces on which sole system 110 may be used. Examples of ground surfaces include, but are not limited to: natural turf, synthetic turf, dirt, as well as other surfaces.
As described in further detail below, in some embodiments, sole system 110 may also include provisions to enhance tactile sensation at the sole of the foot. For example, sole system 110 can include features that provide a tactile response to variations in a ground surface.
Referring to
It will be understood that forefoot portion 10, midfoot portion 12 and heel portion 14 are only intended for purposes of description and are not intended to demarcate precise regions of sole system 110. Likewise, lateral side 16 and medial side 18 are intended to represent generally two sides of sole system 110, rather than precisely demarcating system 110 into two halves.
For consistency and convenience, directional adjectives are employed throughout this detailed description corresponding to the illustrated embodiments. The term “longitudinal” as used throughout this detailed description and in the claims refers to a direction extending a length of a component. For example, the longitudinal direction of sole system 110 may extend from forefoot portion 10 to heel portion 14 of sole system 110. Also, the term “lateral” as used throughout this detailed description and in the claims refers to a direction extending along a width of a component. For example, the lateral direction of sole system 110 may extend between medial side 18 and lateral side 16 of sole system 110. Additionally, the term “vertical” as used throughout this detailed description and in the claims refers to a direction that is perpendicular to both the longitudinal and lateral directions. For example, the vertical direction of sole system 110 may extend through the thickness of sole system 110.
In addition, the term “proximal” refers to a portion of a footwear component that is closer to a portion of a foot when an article of footwear is worn. Likewise, the term proximal direction refers to a direction oriented towards a foot when an article is word. The term “distal” refers to a portion of a footwear component that is further from a portion of a foot when an article of footwear is worn. The distal direction refers to a direction oriented away from a foot when an article is worn.
In some embodiments, sole system 110 may further include a sole member 120 and a protruding member assembly 150. In some embodiments, protruding member assembly 150 may comprise a plurality of protruding portions 152, as well as a plurality of connecting portions (not shown in
In different embodiments, inner member 190 could be configured as a variety of different footwear components including, but not limited to: an insole or a sockliner. Thus, inner member 190 may be configured to provide enhanced support for a foot as well as increased cushioning and comfort. In some embodiments, inner member 190 may be primarily associated with sole system 110 (e.g., inner member 190 may be an insole). In other embodiments, inner member 190 may be primarily associated with upper 102 (e.g., inner member 190 may be a part of a sockliner). In some embodiments, inner member 190 could comprise all or part of a slip last or strobel.
In some embodiments, inner member 190 may be a full length member, which extends from a forefoot portion 10 to a heel portion 14 of sole system 110. In other embodiments, however, inner member 190 could be a partial length member that extends through some portions of sole system 110, but not others. As one example, in another embodiment, inner member 190 could extend through only forefoot portion 10. In another embodiment, inner member 190 could extend through only heel portion 14.
When used, inner member 190 may be disposed between a foot and other components of sole system 110, including both sole member 120 and protruding member assembly 150. In some embodiments, for example, a first surface 131 of inner member 190 confronts sole member 120 and protruding member assembly 150 while a second surface 133 of inner member 190 faces towards a foot and/or additional layers such as a strobel or other liner. In some cases, second surface 133 may directly contact a foot during use.
In some embodiments, sole member 120 may be configured as a midsole and/or outsole of sole system 110. In the exemplary embodiment, sole member 120 comprises a monolithic or unitary structure that provides support and strength, as well as a durable outer ground engaging surface for sole system 110. Optionally, in other embodiments, sole member 120 could comprise a separate midsole and outsole. As an example, in another embodiment, sole member 120 could be further covered on a lower surface by a separate outsole, which further includes holes to receive protruding members.
In some embodiments, sole member 120 may be characterized as having an outwardly facing surface 122 (as shown, for example, in
In some embodiments, protruding member assembly 150 may comprise plurality of protruding members 152 that are connected to one another by a plurality of connecting portions 154. As used throughout this detailed description and in the claims, the term “protruding member” refers to any component or structure that can protrude outwardly from a surface of a sole system. In some embodiments, a protruding member may be a cleat member or other traction element that is configured to engage a ground surface and provide increased traction between sole member 120 and a ground surface. However, in other embodiments a protruding member may not be configured to facilitate ground engagement and/or traction. Instead, it is possible that in some embodiments a protruding member may be primarily utilized to enhance tactile sensation, as discussed in further detail below. In an exemplary embodiment, each protruding member of plurality of protruding members 152 may be configured as a cleat member that improves traction and also facilitates enhanced tactility and sensation on the bottom of the foot.
Each protruding member may be characterized as having a first end portion (or proximal portion), a second end portion (or distal portion) and an intermediate portion. For example, as indicated in
In some embodiments, plurality of protruding members 152 may be connected to one another using plurality of connecting portions 154. More specifically, in some embodiments, protruding members that are directly adjacent may be connected by a connecting portion. For example, in the exemplary embodiment, first protruding member 161 and an adjacent second protruding member 168 are connected to one another by first connecting portion 171. Further, each protruding member of plurality of protruding members 152 may be connected to one or more protruding members that are directly adjacent to the protruding member. For example, first protruding member 161 is also connected to a third protruding member 169 by second connecting portion 172. This arrangement provides a matrix-like or web-like configuration for protruding member assembly 150.
In some embodiments, plurality of connecting portions 154 may each include a first end portion and a second end portion. For example, as indicated in
Referring now to
In order for protruding member assembly 150 to be assembled with sole member 120, plurality of holes 180 are arranged in a configuration on sole member 120 that corresponds to the arrangement of plurality of members 152 within protruding member assembly 150. In particular, plurality of holes 180 are in one-to-one correspondence with plurality of protruding members 152 so that each protruding member is received in a corresponding hole. Thus, the pattern or arrangement of plurality of holes 180 within sole member 120 is seen to match the pattern or arrangement of plurality of protruding members 152 within protruding member assembly 150.
In some embodiments, inwardly facing surface 124 may include provisions to receive one or more connecting portions. For example, in some embodiments, inwardly facing surface 124 includes a plurality of recesses 127 that are sized and oriented to fit corresponding connecting portions of plurality of connecting portions 154. As seen in
Using the exemplary configuration, protruding member assembly 150 may be assembled with sole member 120 so that plurality of protruding members 152 are inserted through plurality of holes 180. Further, in some cases, plurality of connecting portions 154 are received within plurality of recesses 127 of inwardly facing surface 124. With this configuration, plurality of connecting portions 154 may form a supporting structure along inwardly facing surface 124 from which plurality of protruding members 152 may be suspended. This arrangement facilitates the articulation of individual protruding members as discussed in further detail below.
Referring now to
Outer portion 158 includes all the distal end portions of plurality of protruding members 152. In other words, outer portion 158 may comprise the portion of protruding member assembly 150 that confronts a ground surface during use. In some cases, inner portion 156 may be further associated with an inner surface 157 that is approximately parallel with the top surfaces of the proximal end portions of plurality of protruding members 152 and with the top surfaces of plurality of connecting portions 154. Likewise, in some cases, outer portion 158 may be further associated with an outer surface 159. Outer surface 159 may be a two-dimensional surface that is approximately parallel with the bottom surfaces of the distal end portions of plurality of protruding members 152. As seen in
As seen in the figures, when protruding member assembly 150 is assembled with sole member 120, plurality of protruding members 152 extend through plurality of holes 180. Moreover, the distal end portions of each protruding member extend outwardly from outwardly facing surface 122 of sole member 120. For example, in the configuration shown in
In some embodiments, the proximal end portions of each protruding member of plurality of protruding members 152 could be flush with, or extend outwardly from, inwardly facing surface 124 of sole member 120. As best seen in
In different embodiments, the arrangements of protruding member assembly 150 through sole member 120 can vary. For example, in some embodiments, protruding member assembly 150 may extend through all portions of sole member 120 (e.g., forefoot portion 10, midfoot portion 12 and heel portion 14). In other embodiments, protruding member assembly 150 may extend through some portions of sole member 120, but not others. As an example, in some embodiments, protruding member assembly 150 could be associated with forefoot portion 10 and midfoot portion 12, but not heel portion 14. In still other embodiments, protruding member assembly 150 could extend through any other portions or combination of portions.
In different embodiments, the geometric pattern formed by plurality of protruding members 152 and connecting portions 154 could vary. For example, the relative spacing between adjacent protruding members, the number of connecting portions attached to each protruding member as well as other general geometric features of the arrangement could be varied. These geometric features could be selected to achieve desired levels of tactile sensation across different regions of the foot.
In an exemplary embodiment, protruding member assembly 150 extends through a majority of sole member 120, with some gaps in coverage. For example, as best seen in
Although the current embodiment illustrates a unitary protruding member assembly, other embodiments could comprise a protruding member assembly with disjoint sections, or multiple protruding member assemblies that are separated. Such an example is discussed below and illustrated in
Embodiments may incorporate protruding members of different shapes and/or sizes. In one exemplary embodiment, plurality of protruding members 152 each have a geometry that is approximated by a conical frustum (e.g., a truncated cone). In other words, the diameter of each protruding member of plurality of protruding members 152 may decrease towards the tips (i.e., in the distal direction). In another exemplary embodiment, discussed below, a plurality of protruding members may have a cylindrical geometry (i.e., constant diameter). Such an embodiment is described below and shown in
In different embodiments, the dimensions of each protruding member could vary. For example, in some embodiments the diameter of a protruding member could be substantially greater than a height of the protruding member. In other embodiments, the height of a protruding member could be substantially less than the height of the protruding member. It is contemplated that some embodiments could utilize protruding members having a pin-like geometry in which the length of the protruding member is much greater than the diameter. In other embodiments, the diameter and height of a protruding member could be substantially similar. The dimensions (e.g., diameter and/or height) could be selected according to factors including, but not limited to, materials used, desired tactile properties and user comfort.
In different embodiments, the geometry of one or more connecting portions could also vary. In the exemplary embodiment, each connecting portion has a strip-like or bar-like shape. In other embodiments, however, the geometry of each connecting portion could vary in any other manner. Other exemplary geometries could include straight geometries, curved geometries as well as regular and irregular geometries.
It will be understood that embodiments may utilize a variety of different geometries for one or more holes within sole member 120. Exemplary embodiments include hole geometries that correspond to the geometries of associated protruding members. For example, as seen in
In some embodiments, protruding member assembly 150 may be configured in a manner that allows the assembly to flex, bend, deflect, twist or otherwise undergo elastic deformation of some kind. This can be achieved through the use of connecting portions that are at least partially elastic and therefore allow for some relative movement between adjacent protruding members.
In embodiments where a large number of protruding members are connected via a matrix or webbing of connecting portions, even small local deformations of connecting portions can result in large global deformations for protruding member assembly 150. In embodiments where large deformations of connecting portions can occur, the resultant global deformations in protruding member assembly 150 can be large.
Referring now to
Thus, it is clear that protruding member assembly 150 can be bent or flexed such that adjacent regions of protruding member assembly 150 are angled or non-parallel with each other. Likewise, protruding member assembly 150 can be elastically deformed into curved and/or non-linear geometries.
As seen here, the displacement of second protruding member 1012 is made possible by the elastic properties of first connecting portion 1020 and second connecting portion 1022, which may stretch or otherwise elastically deform in response to applied forces. For example, first connecting portion 1020 is seen to stretch from an initial length L1 to a final length L2. Second connecting portion 1022 may likewise undergo stretching as the position of second protruding member 1012 is changed.
Further, it can be seen that as second protruding member 1012 is displaced, the orientations of first connecting portion 1020 and second connecting portion 1022 change. In particular, first connecting portion 1020 and second connecting portion 1022 may be approximately flat or parallel with an inner surface 1045 of protruding member assembly 1000 while second protruding member 1012 is in the initial position 1030. However, as second protruding member 1012 is moved to the displaced position 1032, first connecting portion 1020 and second connecting portion 1022 become angled with respect to inner surface 1045.
While the exemplary embodiment of
As seen in
Referring next to
Because of the flexibility of protruding member assembly 150, movement of protruding members may primarily occur at localized regions where forces or pressures are directly applied. Thus, for example protruding member 1101, which is some distance away from region 1202 where force 1200 has been applied, does not move.
The net effect of the change in configurations of protruding member assembly 150 shown in
The local displacement of each protruding member in response to applied forces at their distal ends may result in a geometric configuration of protruding member assembly 150 that reflects the variation in applied forces. In particular, if sole system 110 is disposed on a contoured ground surface, the configuration of protruding member assembly 150 may be varied so that an inner surface of the protruding member assembly is provided with a contoured geometry that corresponds with the geometry of the contoured ground surface. With the foot in direct contact, or indirect contact, with the inner surface of protruding member assembly 150, the wearer of article 100 is able to sense the geometry of the underlying ground surface. In other words, sole system 110 creates a tactile sensation along the sole of the foot that provides the user with information about the ground surface.
Referring first to
Referring now to
As seen by comparing
Using the arrangement described above, a wearer of sole system 110 can sense surface features that might otherwise not be sensed using a traditional sole structure. Such an improvement in tactile sensation may enhance the wearer's balance, or could help the wearer to avoid undesirable ground conditions (e.g., bumpy surfaces or surfaces with divots).
As in a previous embodiment, sole system 1500 further includes protruding members connected by connecting portions. However, in contrast to the previous embodiments, the current embodiment may be characterized by the use of multiple different protruding member assemblies. For example, in the current embodiment, sole system 1500 incorporates a first protruding member assembly 1550, a second protruding member assembly 1552, a third protruding member assembly 1554 and a fourth protruding member assembly 1556.
Each protruding member assembly comprises a plurality of protruding members connected to one another by a plurality of connecting portions. For example, referring to
The use of disjoint protruding member assemblies may allow for a variety of possible arrangements on sole member 1500. In the exemplary embodiment, first protruding member assembly 1550 and second protruding member assembly 1552 are associated with medial side 1518 and lateral side 1516 of forefoot portion 1510 of sole member 1500. Additionally, fourth protruding member assembly 1556 is associated with a rearward region of forefoot portion 1510, which is also on the medial side of sole member 1500. Finally, third protruding member assembly 1554 extends through heel portion 1514 of sole member 1500 as well as midfot portion 1512 of sole member 1500. In some embodiments, third protruding member assembly 1554 is disposed along an outer peripheral portion 1505 of sole member 1500, and may not extend into a central portion 1506 of sole member 1500.
The exemplary configuration shown in
Some embodiments may also include provisions to enhance the level of sensation provided by one or more protruding members to a foot. In some embodiments, for example, an end portion of a protruding member can extend above (or away from) an outward surface of a protruding member assembly. In the embodiment shown in
Referring now to
In different embodiments, the relative lengths of the proximal and distal protruding portions of a protruding member, as measured relative to the location where a connecting portion is joined to the protruding member, can vary. In some embodiments, for example, the distal protruding portion of a protruding member could be substantially longer than the proximal protruding portion. In other embodiments, the proximal protruding portion could be longer than the distal protruding portion. In still other embodiments, the proximal protruding portion could be substantially equal in length to the distal protruding portion. The relative length of the distal protruding portion and the proximal protruding portion could be varied to adjust characteristics of the sole system including the frequency and/or degree of tactile sensation provided by the sole system.
In contrast to the previous embodiments, the portion of a protruding member assembly engaging a foot is comprised mainly of proximal protruding portions of the protruding members. In other words, in this embodiment, plurality of connecting portions 1560 may not engage or otherwise contact a foot, or intermediate layer such as an inner member. Such a configuration for a protruding member assembly may change the amount of tactile sensation received at the foot, as the surface area of the contacting surface is less than in embodiments where connecting portions are also part of the contacting surface.
In some embodiments, a protruding member assembly may be formed as a substantially monolithic component. For example, in some embodiments, a protruding member assembly is a single molded construction comprising both connecting portions and protruding members. In other embodiments, however, a protruding member assembly could comprise protruding members that are pre-formed and then assembled together with connecting portions. In one embodiment, for example, a plurality of protruding members may be connected to one another by sections of elastic cable that are attached to the protruding members using an adhesive, a fastener or by tying the cables to the protruding members.
In some embodiments, protruding members and connecting portions could be made of substantially similar materials. For example, in embodiments where the protruding members and connecting portions comprise an integrally molded component, the protruding members and connecting portions could both be made of an elastically deformable material such as a plastic or rubber material. In other embodiments, protruding members and connecting portions could be made of substantially different materials. For example, in another embodiment, the protruding members could be constructed of a first material that is less elastic than a second material used to construct the connecting portions. Such a configuration would allow for increased flexibility of the connecting portions while limiting the elastic deformation undergone by the protruding members to maximize vertical force transfer. Moreover, the flexibility of the protruding members and the connecting portions could be varied to tune the protruding member assembly in order to achieve a desired level of tactile sensation during use.
In different embodiments, the materials used for a sole member could vary. In some embodiments, a sole member could be made of a rigid material that undergoes little deformation in response to ground contacting forces. For example, in some embodiments, a sole member could comprise a rigid plate. In other embodiments, the sole member could be somewhat flexible. For example, in another embodiment, a sole member could be made of a medium or hard foam that can deform somewhat in response to ground contacting forces. In an exemplary embodiment, the material used for the sole member may be more rigid and therefore undergo less bending, stretching, etc. than at least some components of the protruding member assembly.
In this embodiment, a first protruding member assembly 2050, a second protruding member assembly 2052, a third protruding member assembly 2054 and a fourth protruding member assembly 2056 may be provided to enhance tactile sensation in the manner described above. In some embodiments, the material construction of two or more protruding member assemblies could be different. For example, in this embodiment first protruding member assembly 2050 is made of a first material, second protruding member assembly 2052 is made of a second material, and both third protruding member assembly 2054 and fourth protruding member assembly 2056 are made of a third material. Here, the first material, the second material and the third material are all substantially different.
Each of the first material, the second material and the third material could vary in one or more material characteristics. For example, in some cases, the first material may be substantially more elastic than the second material. Likewise, the second material could be substantially more elastic than the third material. Thus, with this configuration, first protruding member assembly 2050 may more readily deform in response to ground forces than second protruding member assembly 2052. Likewise, both first protruding member assembly 2050 and second protruding member assembly 2052 may more readily deform in response to ground forces than either third protruding member assembly 2054 or fourth protruding member assembly 2056. Thus, sole system 2010 may be more responsive (i.e., may provide more tactile sensation) to motions such as pivoting and medial cutting, than lateral cutting or back pedaling.
Although the embodiment of
In some embodiments, the type and degree of tactile sensation experienced by a wearer may be a function of the density and size of the protruding members. As the size of the protruding members is decreased and their density increased, the resolution of tactile sensations is increased. In other words, with more protruding members that are more densely packed together, the protruding member assembly may be used to sense finer geometric structures in the underlying ground surface. Therefore, while the exemplary embodiments depict some possible combinations of protruding member size and spatial density, in other embodiments the protruding member size and spatial density could be adjusted to achieve a desired resolution in tactile sensation provided to the wearer.
However, in contrast to previous embodiments, the embodiment of
In different embodiments, the degree to which portions of a protruding member assembly are raised above a proximal surface of a sole member can vary.
As discussed above, protruding members in a protruding member assembly can be joined, or otherwise associated, with one another using a variety of structures. In some embodiments, protruding members may be integrally formed with connecting portions, which can be accomplished using various kinds of molded polymer materials. In other embodiments, however, connecting portions could comprise a variety of different materials as well as possibly different structures to achieve the desired degree of relative flexibility between protruding members.
It is also contemplated that in some embodiments protruding members could be attached using structures that incorporate a living hinge and/or bellows structure. For example,
While various embodiments have been described, the description is intended to be exemplary, rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible that are within the scope of the embodiments. Accordingly, the embodiments are not to be restricted except in light of the attached claims and their equivalents. Also, various modifications and changes may be made within the scope of the attached claims.
This application is a divisional of U.S. patent application Ser. No. 15/249,833, filed Aug. 29, 2016, which is a divisional of U.S. patent application Ser. No. 14/156,491, filed Jan. 16, 2014, now U.S. Pat. No. 9,516,918, both of which are incorporated herein by reference in their entirety.
Number | Date | Country | |
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Parent | 15249833 | Aug 2016 | US |
Child | 16218071 | US | |
Parent | 14156491 | Jan 2014 | US |
Child | 15249833 | US |