Rack for storing product

Information

  • Patent Grant
  • 6352163
  • Patent Number
    6,352,163
  • Date Filed
    Tuesday, August 22, 2000
    23 years ago
  • Date Issued
    Tuesday, March 5, 2002
    22 years ago
Abstract
A rack is provided having a track which is adapted to removably support a plurality of items in a predetermined pattern or order. The track comprises a plurality of interconnected levels so that the items may move along the track between the different levels and the items are readily accessible from all locations on the track. Clips may be used to sectionalize the rack and to balance the load on the rack while it spins. Alternatively, one or more vertical rods secured to and extending between at least several levels of the track may be provided to strengthen the track and sectionalize the track into segments.
Description




FIELD OF THE INVENTION




This invention relates primarily—but not exclusively—to spinner racks and more particularly to racks for storing or inventorying products or items such as prescription refills in an ordered system




BACKGROUND OF THE INVENTION




Display and storage racks commonly available provide a variety of configurations in which to present products for sale or to store or otherwise inventory items for later use. Typically, such racks either display or store items in a linear or circular manner. For example, gondolas and similar shelving systems found in many retail stores provide a plurality of horizontal shelves and other types of display devices such as brackets and rods which can be hung from a central support and on which product can be displayed. Such known displays are illustrated, for example, in U.S. Pat. Nos. 5,697,507; 4,919,282; 4,046,083; and 2,965,242. Similarly, circular rods supported by a center mast or structure and from which clothing or similar items are hung can be found in many retail stores. Such racks, however, do not satisfactorily meet the needs found in a variety of situations where it is necessary or desirable to display items in an ordered pattern wherein the items are easily accessible and readily viewable from all sides of the rack, and inventory control is also desired.




In many other situations, items such as prescription refills, photographs developed for consumers by a commercial establishment, or medical records, to name but a few, need to be stored in an ordered manner so that particular orders or records may be quickly located and retrieved for presentment to a customer or for use in attending to a patient. Typically, such items are stored in bins, drawers or filing cabinets which are labeled in some sort of systematic manner, such as alphabetically or by special code, so that each particular item can be located and retrieved as required. Nonetheless, such systems can prove to be cumbersome or time-consuming to use. When a large number of items are stored together in one bin or drawer, it can be rather time-consuming to sort through the bin to find a particular item. As items are removed from the bin or drawer and new items added, the bin may become cluttered and it can prove difficult to keep the bin organized. Consequently, locating and retrieving a particular item stored within a crowded bin or drawer becomes more difficult and time-consuming. Also, such bins and drawers often take up an inordinate amount of space, are expensive to construct and install, and may present an unsightly, disheveled appearance to customers.




Pharmacies present an example where it is desirable to prepare and store large numbers of unique items for later individualized retrieval. Many people are on programmed prescription drugs, medicines, food supplements, and the like (hereinafter collectively called “medications”) which require taking a number of such medications on a timed schedule. As a result, pharmacies can easily predict within a few days when a customer will call for a refill of his medication. The advent of the computer has made the record keeping and prediction for such refills easier to maintain.




On the other hand, a pharmacy staff does not always have a smooth flow of work which can be done in an orderly manner. During normal working hours of a day, many customers are at their place of employment and the pharmacy staff has slack time with only a few customers to serve. On weekends and in the evening hours after the workday ends, there is a flood of people simultaneously demanding service. The pharmacy cannot afford to staff many people when demand is slack. If the staff has too few people when demand is strong, the customers may go elsewhere.




A further complication is that once a prescription is filled, it is generally placed in one of many baskets marked alphabetically. When a customer comes in to pick up his prescription or other medication, the pharmacy staff usually looks through a basket carrying the customer's initials. Many times, the pressure of the rush hour leads to placing the prescriptions or medications in the wrong basket. Therefore, the usual procedure is to look through a number of baskets if the prescription is not found at the expected location. These and similar problems often create significant ill will among the customers of a pharmacy and take up unnecessary time of the pharmacy staff.




A desirable procedure would be for the pharmacy staff to use slack time calling up and filling the soon-to-be-ordered prescriptions or medications and filling them. Then, when the customer comes in for a refill, the pharmacy staff simply hands the customer the pre-filled container. This procedure creates a problem of controlling the inventory of pre-filled containers.




Thus, there is a need for a rack which provides a system or method to inventory a plurality of unique items such as pre-filled prescriptions in a predetermined order. Such a rack should allow for items to be added to and removed from the rack without disturbing the systematic order in which the items are stored. The present invention provides such a rack and system, which is particularly suitable for use in storing and inventorying unique items, such as prescription refills, processed film envelopes, and medical records in an ordered system for quick and easy retrieval.




SUMMARY OF THE INVENTION




Accordingly, an object of the invention is to provide a general-purpose system which can be used for filing any appropriate item within an ordered inventory of such items, thereby providing ready access to specific individual items within the ordered inventory. According to the present invention, the ordered inventory is easily maintained as items are added to and removed from the system in locations consistent with the method employed for ordering the inventory. Yet another object is to provide a rack with a plurality of interconnected levels for the point-of-sale display of products in a retail environment, the rack not only being attractive, but also serving to manage the inventory of products in a systematic manner.




A first example of where the present invention may be useful is in a retail pharmacy setting. Pre-filled prescription orders may be placed on the rack system of the present invention in some systematic order, such as alphabetically by customer name, order number, or some other method of uniquely identifying and organizing each prescription order. As customers arrive to pick up their prescriptions, the proper pre-filled order may be easily located based on the order's unique identifier and the ordered system for storing the prescriptions on the rack. The rack system is such that when individual pre-filled prescription orders are removed, the overall order of the inventory is maintained, so that the pre-filled prescription orders remaining on the rack may be similarly easily located for fast, efficient retrieval and later prepared orders may be systematically stored on the rack.




Another example where the present invention could find use is in the storage and inventorying of processed photographs prepared by commercial film developers for pickup by customers. Photographs developed by commercial processors are usually packaged in envelopes bearing a unique identifier such as a numbered code or a customer's last name, in much the same way that pre-filled prescription orders are packaged. The present invention provides a system uniquely adapted for holding the developed photographs in an ordered system wherein the photographs can be quickly and easily located and retrieved for customer pickup.




The present invention also provides a rack with multiple interconnected levels for the display of product in a unique configuration so that the product is exposed to view as it moves along the different levels of the rack. Such display racks may be suitable for any number of different retail environments where it is desirable to make a relatively large number of items stored in a pre-determined order or according to a pre-defined system readily available for consumer viewing and access, and which facilitates inventory control.




In keeping with an aspect of the invention, a rack is provided with a track having several interconnected levels to support a variety of different types of products or items. The track may be supported by a center mast or other type of structure, or in appropriate circumstances, freestanding. Vertical rods may be secured to the track between the several levels to strengthen the track and provide a handle for moving the rack. The vertical rods may also act to segregate products supported by the track. Means are provided to removably support the product or items on the track so that they can move along the track between the different track levels. In some applications, the product or items may be labeled with a unique identifier so that they can be placed on the rack in a predetermined ordered inventory or system. As items are removed and added to the rack, the predetermined order is maintained. The rack may be rotatable—i.e. a “spinner”—to permit easy access to the stored products or items at all locations along the multi-level track.











BRIEF DESCRIPTION OF THE DRAWINGS




A preferred embodiment will be understood best from a study of the following specification, taken with the attached drawings, in which:





FIG. 1

is a side elevation of a storage and display rack according to an embodiment of the invention, the rack having a plurality of items suspended therefrom;





FIG. 2

is one example of a bag or container adapted to be suspended from the rack of

FIG. 1

;





FIG. 3

is an example of a code that may be applied to a bag or container such as that shown in

FIG. 2

;





FIG. 4

is a fragment of a slide type track for use in an alternate embodiment of the invention;





FIGS. 5A-5F

are variations of spiral tracks that may be used in various embodiments of the invention;





FIGS. 6A-6G

are top views of various alternate track arrangements;





FIGS. 7A-7C

are side elevations of various alternate methods of supporting a track employed in a rack according to the present invention;





FIGS. 8A and 8B

are front elevations of rolling carts having racks mounted thereon according to embodiments of the invention;





FIG. 9

is a perspective view of a rack system according to the present invention particularly well-adapted for use in a pharmacy;





FIG. 10

perspective view of a fragment of track of an alternate embodiment of the invention wherein hooks are mounted to the track;





FIG. 11

is a perspective view of the fragment of track of

FIG. 10

showing a plurality of items suspended from the hooks; and





FIG. 12

is a perspective view of another alternate embodiment of the invention.











DETAILED DESCRIPTION OF THE INVENTION




A first embodiment of the invention is shown in FIG.


1


. This embodiment comprises a rack


20


having a base


26


, a vertical mast


22


, and a helical spiral track


24


. The track


24


is mounted to and around the mast


22


, which in turn is supported by the base


26


. The base


26


may be any suitable support capable of supporting the vertical mast


22


. If the rack


20


is to remain stationary, the base may be an immobile stand similar in design to a simple Christmas tree stand. In alternate embodiments, the base


26


may be configured to allow the rack


20


to rotate in the manner of a spinner rack, allowing a person to rotate the rack until the desired item or product suspended from the track


24


comes into view. In still other embodiments, which are described below, the base


26


may be omitted entirely.




In the embodiment shown in

FIG. 1

, the track


24


is formed of a rigid helical wire or cable. In this embodiment the track is sufficiently strong to be self-supporting. By providing a sufficiently rigid track, the track need only be attached to the mast at the top and bottom ends of the track as shown in FIG.


7


A. However, depending upon the weight of the expected products, the stability required of the particular installation, and other factors, spoke-like supports


39


may extend from the mast


22


to the track


24


at selected locations to help support the weight of track


24


and the product


25


supported by the track (see FIG.


6


A). Adding spoke-like supports


39


further performs the ancillary function of segregating portions of the track


24


. This function will be described in more detail below.




Referring to both

FIGS. 1 and 2

, items


25


may be suspended from the track


24


. In the embodiment shown, an item


25


is a small package


34


having a hook


36


adhered to the top thereof by means of a staple


38


. Indicia, such as the code


40


shown in

FIG. 3

identifying individual packages


25


are placed on the side of each package


25


. The packages


25


may then be suspended from track


24


by means of the hook


36


with the identifying indicia facing outward so as to be easily read by a person standing adjacent the rack


20


. The hooks allow the packages to slide along the track


24


in order to arrange packages as desired along the length of the track.




In an alternate embodiment shown in

FIGS. 10 and 11

, hooks


42


are slidably attached to the track


24


by means of a wire loop


43


substantially encircling the track. The hooks


42


include a lower portion


45


which supports an integrated clip


44


. The integrated clip has a gripper portion


47


adapted to retain a portion of an item or container to be suspended from track


24


. The clip is biased by means of a spring (not shown) and release wings


49


, whereby the gripper portion of the clip may be opened to insert or remove an item supported by the clip


44


.

FIG. 11

shows a plurality of items


25


suspended from a plurality of hooks


42


.




Referring briefly to

FIG. 4

, an alternate track


27


is shown. Instead of being an over-head track from which packages are suspended, the track


27


comprises a slide on top of which packages or items


25




a


are supported. The slide


27


may be formed having any of the desirable shapes and features of the overhead track


24


which are described below. Obviously, when a slide


27


is provided, the packages or items supported by the rack will not require a hook. Therefore, in

FIG. 4

an alternate package


25




a


is shown supported by a short section of slide


27


.




Returning now to the embodiment of

FIG. 1

, the helical shaped track


24


curves around the mast in a downward spiral forming a number of successive tiers or levels. Thus, at any given angle relative to the rack


20


, a plurality of levels of the track are presented to an individual facing the rack. The track


24


depicted in

FIG. 1

has the form of a continuous, gently sloping downward spiral; however, the shape of the track may take any suitable form necessary to meet the demands of a particular application.





FIGS. 5A-5F

show a number of different track arrangements suitable for different applications.

FIG. 5A

shows a track


24


in the shape of a simple circular spiral.

FIG. 5B

shows a track


24


in the form of a modified spiral having a series of horizontal landings


28


. The landings are connected by angled portions of the track


30


extending between levels.

FIG. 5C

is similar, showing a half-spiral with semicircular landings


32


and flat angled portions


33


extending between the landings.

FIG. 5D

shows yet another variant of the basic spiral. The track


24


shown in

FIG. 5D

comprises a flat staircase having horizontal landings


35


on one side, and angled risers


37


between landings on the other side. Other variations of spirals may also be used, such as the descending conical spiral track


24


shown in

FIG. 5E

or the ascending conical spiral track


24


shown in

FIG. 5F. A

common feature of these different tracks is that they are continuous, and that the different levels or tiers are interconnected so that products can be moved along the track from one tier to another without the necessity of removing the products from the rack.




In addition to variations of the spiral character of the track


24


, including the various landings and angled portions and such, the shape of the helical track may take on a number of different forms, when viewed from above. For example,

FIGS. 6A-6G

show a non-exclusive collection of possible shapes for the helical track


24


. Many of the shapes shown in

FIGS. 6A-6G

correspond to the various track embodiments in

FIGS. 5A-5F

. The shapes disclosed in

FIGS. 6A-6G

comprise respectively: a circular helical track


6


A having spoke-like supports


39


extending from the central mast


22


; an ascending or descending spiral


6


B; a square


6


C; a semi-circle


6


D; a multi-sided polygon


6


E; a triangle


6


F; and an oblong or oval track


6


G.




Various mounting arrangements for the track


24


are shown in

FIGS. 7A

,


7


B and


7


C. The mounting arrangement shown in

FIG. 7A

corresponds to the embodiment of

FIG. 1

wherein the vertical mast supports the upper end


17


and lower end


19


of the track


24


. In the embodiment of

FIG. 5B

, the vertical mast is replaced with a “C” shaped vertical support


23


. Track


24


is connected to the upper and lower horizontal arms


29


,


31


of the “C” shaped vertical support at each end of the helical coil.

FIG. 7C

shows another embodiment comprising merely a rigid helical track wherein both the mast and the base are omitted. In this version, the rigid track


24


sits directly on a floor or shelf or some other support surface. In this embodiment, the track must be sufficiently strong to support its own weight and the weight of the items to be suspended from the track.




In addition to floor-mounted or shelf-mounted racks, a rack or racks according to the present invention may also be provided on rolling carts


48


as shown in

FIGS. 8A and 8B

. Mounting racks according to the present invention on movable carts offer mobility and additional shelving and storage space. Such carts include a substantially flat planar base


50


,


64


supported by a plurality of casters


52


,


66


. Cabinets or shelves


54


,


68


are mounted above the base


50


,


64


and provide additional product storage. Turning first to the embodiment shown in

FIG. 8A

, vertical masts


60


are mounted on the planar base


50


, and helical tracks


56


as have been described are mounted to the masts


60


. The embodiment of

FIG. 8B

is substantially the same as that shown in

FIG. 8A

, except that the vertical masts


60


have been removed. External cabinetry including side walls


72


is provided, and top


62


extends over most of the base


64


with the ends of the helical tracks


78


supported by the cabinet top


62


at posts


76


and brackets


74


extending from the side walls


72


.




Yet another embodiment of a rolling cart particularly well-adapted for the pharmacy setting is shown in FIG.


9


. There the mobile cart


80


comprises a frame


82


, which supports a series of shelves


84


and a work top or area


86


. The cart


80


is itself supported on casters


88


. A cove or bay


90


is formed by the frame


82


to receive a portable prescription refill rack


92


. The rack


92


has a base


94


supported by casters


96


and a center mast


98


. A spiral track


100


is supported by mast


98


. The rack


92


is sized and shaped to removably fit within cove


90


, where, if desired, it can be temporarily locked in place. When positioned within cove


90


, rack


92


can be moved with mobile cart


80


as one unit. The cart


80


is designed to be moved along shelving


102


in the pharmacy, where medications are stored for the preparation and filling of patient prescriptions. Rollers


103


are provided along the lower back of frame


82


to space the frame away from shelving


102


as the cart


80


is moved so as not to damage the shelving.




As the pharmacist or technician may require, the cart


80


provides a work station for preparing prescriptions which can be moved along the shelving


102


to obtain the desired medications. As each prescription is prepared, it is placed in an appropriate container, such as bag


34


(FIG.


2


), labeled with an appropriate patient identifier


40


(FIG.


3


), and placed in the appropriate location or segment on track


100


for holding until picked up, perhaps several days later, by the patient. Once the rack


92


is full, it can be removed from cart


80


and temporarily stored at another location in the pharmacy convenient for access when patients arrive for their prescriptions. Another empty rack can then be substituted for rack


92


in cove


90


, and the prescription-filling process repeated. This embodiment thus provides a unique method and system for efficiently preparing prescription refills several days or more in advance of when they will be needed and storing them in an ordered inventory system so that the prescriptions can be readily identified and delivered when patients arrive to pick them up.




The use of a rack


20


according to the embodiment of

FIGS. 1-3

in an inventory control system will now be described. It should be noted that racks made according to other embodiments may function equally as well, and in the same manner as the embodiment now described; however, for the sake of brevity, the functional description of the rack will be limited to this one embodiment. The application described below is similarly restricted to use of a rack


20


in a pharmacy setting wherein the items to be stored and inventoried on the rack are prefilled prescription orders. However, the present invention is in no way limited to this particular application, and racks


20


may be readily adapted to other applications such as inventorying commercially processed film orders, medical records and the like.




According to the inventory control and storage system of the present invention, a pharmacist will prepare prescription drug orders in advance of the customer's arrival at the store. Upon completing the order, the pharmacist will package the order in a bag or cardboard container, or some other package


25


as depicted in FIG.


2


. The pharmacist will then write, or otherwise affix an identifying label


40


to the package


25


. The identifying label may comprise the patient's name or a numerical code such as that shown in

FIG. 3

, or some other identifying indicia. Upon placing the order in the container and sealing the container, the pharmacist then suspends the package


25


from the track


24


. In the preferred embodiment, the bags slide under gravity to the bottom of the spiral track. As more packages are added they form an array of packages extending upward along the track. As individual bags are removed to present to customers, the rest of the packages within the array slide down to fill the gap.




The pharmacist continues this process, suspending additional packages from the track and periodically removing packages to present to customers. Each additional package suspended from the rack is placed on the rack in a sequence dictated by the identifying indicia on the side of the package. For example, the packages may be placed in numerical order according to the code


40


, or if the indicia on the side of the package is the patient's name, the packages can be placed on the rack in alphabetical order. Due to the novel design of rack


20


, the packages


25


may be placed on track


24


in sequence regardless of the order in which they are prepared. As packages are hung on the track which bear indicia which sequentially fall between the indicia marked on packages previously hung on the track, the previously hung packages may be slid either further up or further down the track to make room for the additional packages. Thus, the general sequence of packages, i.e. numerical or alphabetical, may be maintained without undue reorganization of the previously prepared packages.




Similarly, if the pharmacist is interrupted from preparing prescriptions and must remove one or more packages from the track to present to a customer, the proper package may be quickly identified by following the sequence of indicia applied to the sides of the packages. The properly identified package


25


may then be removed from the track without disrupting the overall sequence of packages that remain.




An additional feature of the present invention is that the track may be segregated into sections. For example, each tier or level of track


24


could be designated as carrying a group of a limited number of packages, with the first tier carrying packages having a code number ending in the numbers


1


-


10


, the second tier carrying packages


10


-


20


, and so on. Another alternative for segregating portions of the track


24


is to apply dividers


30


,


32


(see

FIG. 1

) in the form of clips to the track as shown in FIG.


1


. The dividers then separate the track into smaller segments in order to facilitate locating the proper sequential location for particular packages. For example, a first divider may be designated


1


-


20


, and all packages having codes ending in the numbers


1


-


20


may be placed on the track


24


above the divider labeled


1


-


20


. Similarly, the next divider may be designated


21


-


40


, and all packages having code numbers


21


-


40


may be placed on the track


24


between the dividers labeled


21


-


40


and


1


-


20


. If spoke-like structures are used to help support the track


24


, these structures may also be used for purposes of segregating packages.




The advantage of the removable clips


30


,


32


is that the user may move the clips as his needs change in order to segregate product according to his instant needs to permit bookmarking. The advantage of the spoke support is that heavier products may be supported on the track. Another advantage of the segregation by clip or spoke is that the rack may maintain a better balance, especially in cases where the rack is designed to rotate, as in a spinner rack. If a number of products should slide to the same side of the rack, the rack may become unbalanced. To remedy this situation, the user may slide a selected number of products back to an opposite side of the rack to rebalance the rack and then hold them there by placing clips


30


,


32


on the track


24


.




Still another embodiment of the invention is shown in

FIG. 12

where rack


200


comprises a base


202


supported on casters


204


, a vertical mast


206


, and a helical spiral track


208


. The base


202


is here shown as an octagonal member


202


A, supported on several beam members


202


B, to which the casters


204


are attached. However, the base


202


may be any suitable support capable of supporting the vertical mast


206


and the track


208


.




The track


208


is formed of a rigid helical wire attached to the top of mast


206


and to a lower point above the base


202


. In the embodiment shown in

FIG. 12

, an additional shelf


210


in the same shape as the base is attached to the vertical mast


206


between the lower end of the track


208


and the base


202


.




Vertical rods


212


are secured, for example by welding, opposite one another to the track


208


to help strengthen the track when it is loaded with product (not shown) as described above in connection with the other embodiments of the present invention. The rods


212


also serve as handles for moving the rack


200


and to segregate portions of the track


208


. As described above, segregating the track


208


into sections helps to facilitate the loading and locating of product placed on the track


208


in sequential order.




As has been described, in applications other than in a pharmacy, the product or item


25


(

FIG. 2

) may take any convenient form. In the case of processed photographs or medical records, the items may be in the form of hanging envelopes or folders. In the case of prescription refills, the bag


34


is similar to those in common use, with the hang hook


36


stapled thereto at


38


.




Those who are skilled in the art will readily perceive many modifications which fall within the scope and spirit of the invention. Therefore, the appended claims are to be construed to include all equivalent structures.



Claims
  • 1. A rack for storing or displaying a plurality of items wherein an indicium is associated with each item to identify the item, said rack comprising:a support; a track for supporting the plurality of items in a predetermined order based on the identifying indicia, the track being secured to the support and forming a plurality of interconnected levels joined in a generally descending manner; and at least one substantially vertical rod secured to and extending between a plurality of levels of the track, wherein the vertical rod segregates the track into segments.
  • 2. The rack of claim 1 wherein the support is a vertical mast.
  • 3. The rack of claim 2 wherein the vertical mast has an upper and lower end and the track is in the general form of a descending spiral having a top and bottom attached between the upper and lower ends of the mast.
  • 4. The rack of claim 1 wherein two substantially vertical rods are each secured to and extend between a plurality of levels of the track.
  • 5. The rack of claim 4 wherein the substantially vertical rods segregate the track into segments.
  • 6. The rack of claim 1 further comprising means for enabling the rack to rotate.
  • 7. The rack of claim 1 wherein the support comprises means for rolling the rack.
  • 8. The rack of claim 7 wherein said rolling means comprise casters secured to the bottom of the rack.
  • 9. A rack comprising:a plurality of items each of which items is identified by an associated indicium; a support; a track for supporting the items in a predetermined order based on the identifying indicia, the track being secured to the support and forming a plurality of interconnected levels joined in a generally descending manner; and a substantially vertical rod secured to and extending between a plurality of levels of the track to segregate the track into segments.
  • 10. The rack of claim 9 wherein the items are adapted to hang from the track.
  • 11. The rack of claim 9 wherein the indicia comprise unique identifiers.
  • 12. The rack of claim 9 wherein the items move along the track segments to form a substantially continuous array.
  • 13. The rack of claim 9 further comprising a pair of substantially vertical rods secured to and extending between a plurality of levels of the track to segregate the track into segments.
  • 14. The rack of claim 13 wherein the items supported by the track slide down the track within the track segments only as far as the substantially vertical rods.
  • 15. The rack of claim 9 further comprising a plurality of hooks for hanging the items from the track.
  • 16. The rack of claim 9 further comprising a plurality of containers to hold the items, the containers adapted to be supported by the track.
  • 17. The rack of claim 16 wherein each of the containers comprises a member to engage the track.
  • 18. The rack of claim 17 wherein the container members for engaging the track are hooks.
  • 19. The rack of claim 9 wherein the interconnected levels of the track are in the general form of a descending spiral.
  • 20. The rack of claim 9 wherein the items are stored on the track in groups within the track segments based on characteristics of the indicia.
  • 21. The rack of claim 9 wherein the indicium associated with each item is exposed to view when the item is supported on the track.
  • 22. The rack of claim 9 wherein the items are supported on the track in a sequential order.
  • 23. The rack of claim 9 wherein the items are supported on the track so that the items slide down the track to fill a gap between adjacent items created when one of the items is removed from the track.
Parent Case Info

This application is a continuation-in-part of application Ser. No. 09/612,731 filed Jul. 10, 2000.

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2841901 Maple Jul 1958 A
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4175665 Dogliotti Nov 1979 A
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Continuation in Parts (1)
Number Date Country
Parent 09/612731 Jul 2000 US
Child 09/643549 US