Adjustable pocket

Information

  • Patent Grant
  • 6412674
  • Patent Number
    6,412,674
  • Date Filed
    Friday, October 6, 2000
    24 years ago
  • Date Issued
    Tuesday, July 2, 2002
    22 years ago
  • Inventors
  • Original Assignees
  • Examiners
    • Cronin; Stephen K.
    Agents
    • Schacht; Michael R.
    • Schacht Law Office, Inc.
Abstract
An adjustable pocket comprising a pocket chamber and a strap assembly comprising a strap member, a first fastener, and a second fastener. The pocket chamber is adapted to contain equipment such as portable communications devices. The pocket chamber is defined by a front wall, a rear wall having at least one hole formed therein, a bottom wall, a first side wall, and a second side wall. The strap member has first and second ends. The first fastener fastens the strap member first end to the front wall. The second fastener fastens the strap member second end to the rear wall. The strap member extends through the hole in the rear wall such that the second fastener fastens the strap member second end to an outer surface of the rear wall. The second fastener is preferably a hook and loop fastener that allows infinite fine adjustment of the form factor defined by the adjustable pocket. A plurality of holes are preferably formed in the rear wall to allow discrete gross adjustment of the form factor defined by the adjustable pocket.
Description




TECHNICAL FIELD




The present invention relates to systems and methods for carrying portable electronic devices and, more specifically, to carrying systems and methods that may be adjusted to accommodate electronic devices of different sizes.




BACKGROUND OF THE INVENTION




The present invention has particular significance to carrying systems and methods for portable electronic equipment, and that application of the present invention will be discussed in detail herein. However, the present invention may have broader application to carrying systems for other types of equipment. The scope of the present invention should thus be determined by the claims appended hereto and not the following discussion of the background or the preferred embodiment for carrying out the present invention.




Electronic equipment is constantly being made smaller and more portable. Stereo equipment, computers, and, perhaps most importantly, communications equipment are all made in small, lightweight, energy efficient versions, powered by batteries, and carried with the user.




Various holsters, pouches, pockets, bags, and the like have been developed to carry portable electronic equipment. A major class of such carrying systems is holster or sheath tailored specifically for a given portable device. The holster is typically clipped onto or looped around the user's belt or other article of clothing at a convenient location. The holster typically comprises a strap secured at one end to the holster and detachably attached at the other end to the holster such that the strap holds the equipment in place. In the case of communications equipment such as telephones, pagers, or two-way radios, the strap is detached to allow the equipment to be removed for viewing and/or answering.




Tailored carrying systems are often acceptable but may not be appropriate in many situations. For example, a uniform may preclude the use of a unique, tailored carrying system. As another example, an activity such as fire fighting, search and rescue, or the like may not be compatible with conventional tailored holsters that are clipped or looped around a user's belt or waist band.




As new portable electronic equipment is introduced, the new equipment is generally smaller and lighter than earlier versions; a tailored carrying system made for one type of equipment may not securely hold another type of equipment.




Conventional tailored carrying systems are also difficult to integrate with larger carrying systems. For example, a chest harness may be designed with an integral pocket for carrying communications equipment. This pocket must be large enough for the largest equipment that can be available and thus may be too large for the smallest equipment available. The entire chest harness may need to be replaced at significant expense as the communications equipment is changed.




In addition, in some situations the communications equipment carried by the user may change depending upon the circumstances. For example, a user may carry a portable telephone in a city environment but switch to a two-way radio in environments without reliable cellular service. The user may need to purchase and carry two different tailored carrying devices, and may have problems with more comprehensive carrying systems sized to carry only one size of communications equipment.




Some equipment pockets have been made to accommodate thinner or narrower equipment by providing straps that, in essence, allow the side panels to be shortened or collapsed.




A number of attempts have been made to provide height adjustment. In one system, a series of loops are sewn to the back wall extending in the height direction. A cord is threaded through one of the loops and then tied to a length appropriate to contain the device in the pocket. A snap fastener is formed on the end of the cord away from the back wall to attach the cord to the pocket front wall over the pocket opening. In another system, a cord is sewn at its upper end to the pocket rear wall. The end of the cord away from the fixed end is attached using velcro that allows a only very limited amount of adjustability of the pocket height. Yet another system using a strap that extends is passed through a sandwich of velcro such that ends of the strap extend around a side of the device in the pocket. The sandwich of velcro holds the strap in the desired place. The strap can be moved up and down relative to the pocket chamber but does not cover the top of the chamber.




Accordingly, the need exists for systems and methods for carrying equipment, such as portable electronics equipment, that may be altered in size to accommodate equipment of different sizes, shapes, and weights. In addition, the need exists for such systems and methods that can be manufactured of conventional materials using conventional manufacturing equipment. Also, such systems and methods should be appropriate for use as a stand-alone carrying system or for integration into a larger carrying system.




SUMMARY OF THE INVENTION




The present invention is, in one preferred form, an adjustable pocket comprising a pocket chamber and a strap assembly comprising a strap member, a first fastener, and a second fastener. The pocket chamber is adapted to contain equipment such as portable communications devices. The pocket chamber is defined by a front wall, a rear wall having at least one hole formed therein, a bottom wall, a first side wall, and a second side wall. The strap member has first and second ends. The first fastener fastens the strap member first end to the front wall. The second fastener fastens the strap member second end to the rear wall. The strap member extends through the hole in the rear wall such that the second fastener fastens the strap member second end to an outer surface of the rear wall. The second fastener is preferably a hook and loop fastener that allows infinite fine adjustment of the form factor defined by the adjustable pocket. A plurality of holes are preferably formed in the rear wall to allow discrete gross adjustment of the form factor defined by the adjustable pocket.




In another form, the present invention is a method of forming an adjustable pocket. The preferred method comprising the steps of providing a front wall, a rear wall having at least one hole formed therein, a bottom wall, a first side wall, and a second side wall; arranging the front wall, rear wall, bottom wall, first side wall, and second side wall to define a pocket chamber; providing a strap assembly comprising a strap member having first and second ends, a first fastener, and a second fastener; extending the strap member through the at least one hole in the rear wall such that the second fastener fastens the strap member second end to an outer surface of the rear wall to define a first form factor; and operating the first fastener to fasten the strap member first end to the front wall.




The present invention in various forms obtains at least some of the objects of the invention described above.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a front elevation view of an adjustable pocket system constructed in accordance with, and embodying, the principles of the present invention;





FIG. 2

is a side elevation, partial section view of the adjustable pocket system of

FIG. 1

;





FIG. 3

is a rear, perspective view of a device holster incorporating the adjustable pocket system of

FIG. 1

;





FIG. 4

is a front, perspective view of the device holster of

FIG. 3

;





FIG. 5

is a front, perspective view of the device holster of

FIG. 3

being adjusted to a different size;





FIG. 5A

is a rear, perspective view depicting a portion of the device holster of

FIG. 3

;





FIG. 6

is a front elevation view of a device chest harness incorporating the adjustable pocket system of

FIG. 1

;





FIG. 7

is a rear elevation partial section view of the device chest harness of

FIG. 6

;





FIG. 8

is a top plan view of a portion of the device chest harness of

FIG.6

; and





FIG. 9

is a rear perspective partial section view of the device chest harness of FIG.


6


.











DETAILED DESCRIPTION OF THE INVENTION




Referring initially to

FIGS. 1 and 2

, depicted at


20


therein is an adjustable pocket system constructed in accordance with, and embodying, the principles of the present invention. The system


20


will initially be described below in a generic form. However, the adjustable pocket system


20


will normally be embodied as part of a carrying system and may be implemented in a variety of configurations. Accordingly, following the general description of the adjustable pocket system


20


, two common carrying systems in which the system


20


may be incorporated will be discussed.




I. Adjustable Pocket System




The adjustable pocket system


20


defines a pocket chamber


22


for carrying equipment and perhaps most importantly for carrying a portable electronic device such as a two-way radio, cellular telephone, locator, or the like. More particularly, the pocket system


20


comprises a front panel


24


, a rear panel


26


, first and second side panels


28


(only one shown in FIG.


2


), and a strap member


30


. Preferably, the pocket system


20


further comprises a backing panel


32


.




The front panel


24


and rear panel


26


may, but need not, be integrally formed from one piece of fabric. Accordingly, a gap


34


in

FIG. 2

schematically indicates that the front panel


24


may be formed separately from the rear panel


26


.




The front panel


24


forms a front wall


36


and bottom wall


38


that define the pocket chamber


22


. The rear panel


26


defines a rear wall


40


. The side panels


28


define first and second side walls


42


(again, only one is shown in FIG.


2


). These walls


36


-


42


substantially, but not necessarily entirely, enclose five sides of the pocket chamber


22


.




An upper side of the pocket chamber


22


is generally open, but the strap member


30


may be secured over this upper side of the pocket chamber


22


to prevent devices within the chamber


22


from falling out should the pocket system


20


be bumped or inverted.




In particular, the exemplary strap member


30


comprises a loop


40


and a strap panel


42


. Attached to the strap panel


42


is one-half of a button assembly that may be used to securely attach an outer end


44


of the loop


40


to the front panel


24


.




An inner end


46


of the loop


40


is attached to an inner strap panel


48


. First and second strap openings


50


and


52


are formed in the rear panel


26


at different locations spaced above the pocket chamber


22


. The inner end


46


of the loop


40


is adjustably attached to an outer surface


54


of the rear panel


26


. In particular, a hook and loop fastener


56


is formed on the inner panel


48


and rear panel


26


that allows the loop end


46


to be temporarily attached at a desired location on the outer surface


54


of the rear panel


26


. In particular, the hook portion of the fastener


56


is attached to one of the outer surface


54


of the rear panel


26


or to the inner panel


48


, while the loop portion is attached to the other of the surface


54


and the inner panel


48


. Fasteners other than a hook and loop fastener may be used, but the hook and loop fastener is relatively thin, requires no bulky parts, and is infinitely adjustable.




The backing panel


32


also has one of the appropriate hook and loop fasteners formed thereon such that it too is detachably attached to the outer surface


54


of the rear panel


26


.




The strap member


30


may be made of other materials in other configurations, but the loop


40


described herein is desirable because it does not interfere with the operation of the elements (antennas, cables, etc.) of the equipment contained in the pocket chamber


22


.




The system


20


described above allows the pocket chamber


22


to be configured to securely contain both short and tall portable electronic devices. For a tall portable electronic device, the loop


40


is passed through the uppermost strap opening


50


and the hook and loop fastener is used to attached the inner end


46


of the loop


40


to a location on the rear panel


26


that allows the strap


30


to snugly accommodate the electronic device.




For shorter electronic devices, the loop


40


is passed through the lowermost strap opening


52


. The inner end


46


of the loop


40


will be connected most likely at a lower location, to the rear panel


26


. When the button assembly


60


is used to attach the outer end


44


of the loop portion


40


to the front panel


24


, even this shorter electronic device will be snugly held within the pocket chamber


22


.




The strap member


30


, in combination with the pocket chamber


22


, thus defines a form factor for the pocket system


20


that can be adjusted as desired to accommodate equipment of different sizes.




The backing panel


32


, when attached to the rear panel


26


by the hook and loop fasteners thereon, will frictionally engage the inner end


46


of the loop portion


40


and the inner panel


48


to help prevent movement of the end


46


should the pocket system


20


be bumped, jarred, or inverted. The backing panel


32


is not essential to any implementation of the present invention but secures and protects the inner end


46


.




The adjustable pocket system


20


will thus snugly hold a portable electronic device in the pocket chamber


22


and can be adjusted to accommodate devices of different heights.




II. Device Holster




Referring now to

FIG. 3

, depicted therein is a device holster


110


that incorporates an adjustable pocket system such as the pocket system


20


described above. The device holster


110


is adapted to be mounted onto a belt assembly


112


that will normally be worn about a user's waist.




The device holster


110


comprises a pocket system


120


comprising a front panel


122


, rear panel


124


, first and second side panels


126


and


128


, a strap assembly


130


, a backing panel


132


, and a belt panel


134


. As shown in

FIG. 3

, certain of these panels may be formed of a single piece of material while others are sown together into the device holster


110


.




The pocket system


120


of the device holder


110


functions in the same basic manner as the pocket system


20


described above. The pocket system


120


will thus be described only to the extent that it differs in construction and operation from the system


20


.




The side panels


126


and


128


of the system


120


have, at their inner ends, a hook and loop fastener


136


that allows the front to back dimensions of a pocket chamber


138


defined by the system


120


to be adjusted. Formed on the backing panel


132


is a portion


140


of a button system the purpose of which will be described in further detail below. Formed on the belt panel


134


is another button portion


142


that will be described in further detail below.




In use, a belt strap


150


is passed between the belt panel


134


and the backing panel


136


. The rear panel


124


is folded over parallel to the belt panel


134


such that the backing panel


132


is arranged between the front panel


124


and the belt panel


134


. Three button portions


152


(only two shown in

FIG. 4

) are formed on the belt strap


150


; these button portions are adapted to engage the button portion


140


described above to adjust an angle at which the device holster


110


extends relative to the belt strap


150


.




A button portion


154


(

FIG. 5

) is formed on a bib portion


156


that extends downwardly from the belt strap


150


. This button portion


154


is adapted to engage the button portion


142


on the belt panel


134


. The engagement of the button portions


154


and


142


allows the device holder


110


to pivot, with the button portions


140


and


152


locking the device holder


110


into one of three angles relative to the belt strap


150


.





FIG. 4

depicts the device holster


110


when the button are attached such that it extends it substantially a right angle to the belt strap


150


.

FIG. 5

shows how the device holster


110


may be disassembled to reconfigure the location of the strap assembly


130


as described above with reference to the pocket system


20


. In particular, the fastening system


136


that attaches the side straps


128


and


126


together is opened and the rear panel


124


is rotated away from the backing panel


132


. As shown in

FIG. 5A

, in this configuration the back of the rear panel


124


is exposed to allow the strap assembly


130


to be adjusted, as described above, to accommodate electronic devices of different sizes and dimensions. Once this adjustment is accomplished, the rear panel


124


is rotated back against the backing panel


132


and the side panels


126


and


128


are connected together using the hook and loop fastener


136


.




III. Device Chest Harness




Referring now to

FIG. 6

, depicted therein is a device chest harness


210


that incorporates an adjustable pocket system such as the pocket system


20


described above.




The device chest harness


210


is in most other respects conventional and will be described herein only to the extent necessary for complete understanding of the present invention.




In particular, the chest harness


210


comprises a chest panel


212


that is configured and dimensioned to fit against the wearer's chest. Additionally, this panel


212


performs the function of the rear panel


26


of the adjustable pocket system


20


described above.




The device chest harness


210


comprises an adjustable pocket system


220


that is located to the front of one side of the chest panel


212


. This pocket system


220


comprises, in addition to a portion of the chest panel


212


, a front panel


222


, a side panel strap


224


, and a strap assembly


226


. The side strap member


224


forms side panels


230


and


232


, and its end forms the backing panel


234


.




Again, the adjustable pocket system


220


operates in the same basic fashion of the pocket system


20


described above. The strap assembly


226


extends through one of a plurality of strap openings


240


,


242


, and


244


as is appropriate for the electronic device being carried. As shown in

FIGS. 7 and 9

, the backing panel portion


234


of the side strap


224


employs a hook and loop fastener system


250


to allow the backing panel


234


to be detachably attached to the rear surface of the chest panel


212


. An inner end


252


of the strap assembly


226


also has an appropriate hook loop fastener portion formed thereon such that it too may be detachably attached to the back surface of the chest panel


212


.




Again, the effective length of the strap assembly


226


may be adjusted as appropriate for a given portable electronic device to be carried by the pocket system


220


. Also, the backing panel portion


234


of the side strap member


224


may be attached to the chest panel


212


to shorten and lengthen the side panels


230


and


232


as is appropriate for the selected electronic device.




IV. Summary




From the foregoing, it should be apparent that the adjustable pocket system


20


of the present invention may be applied to a number of systems in which portable electronic devices of unknown and various physical dimensions may be carried. The scope of the present invention should thus be determined based on the claims attached hereto and not the foregoing detailed description.



Claims
  • 1. An adjustable pocket comprising:a pocket chamber adapted to contain equipment, where the pocket chamber is defined by a front wall, a rear wall having at least one hole formed therein, a bottom wall, a first side wall, and a second side wall; and a strap assembly comprising a strap member having first and second ends, a first fastener for fastening the strap member first end to the front wall, and a second fastener for fastening the strap member second end to one of a plurality of locations on an outer surface of the rear wall; whereby the strap member extends through the at least one hole in the rear wall such that the second fastener fastens the strap member second end to a selected one of the plurality of locations on the outer surface of the rear wall corresponding to a desired form factor defined by the adjustable pocket.
  • 2. An adjustable pocket as recited in claim 1, in which the second fastener is a hook and loop fastener.
  • 3. An adjustable pocket as recited in claim 1, in which a plurality of holes are formed in the rear wall, where the strap member extends through a selected one of the plurality of holes depending on the desired form factor defined by the adjustable pocket.
  • 4. An adjustable pocket as recited in claim 1, further comprising a belt panel, where the belt panel is arranged behind the rear wall and is adapted to allow the adjustable pocket to be suspended from a belt.
  • 5. An adjustable pocket as recited in claim 1, in which the back wall is formed on a chest panel of a chest harness.
  • 6. An adjustable pocket as recited in claim 1, further comprising a backing panel that covers the second fastener.
  • 7. An adjustable pocket as recited in claim 6, further comprising a belt panel, where the backing panel is arranged between the rear wall and the belt panel and the belt panel is adapted to allow the adjustable pocket to be suspended from a belt.
  • 8. An adjustable pocket as recited in claim 1, in which the strap assembly further comprises an inner panel attached to the second end of the strap member, where the second fastener fastens the inner panel to the rear wall.
  • 9. An adjustable pocket as recited in claim 8, in which the second fastener is a hook and loop fastener, and one of a hook portion and a loop portion of the hook and loop fastener is formed on the inner panel.
  • 10. An adjustable pocket as recited in claim 9, in which one of the hook portion and the loop portion is formed on the rear wall.
  • 11. An adjustable pocket comprising:a pocket chamber adapted to contain equipment, where the pocket chamber is defined by a front wall, a rear wall having at least one hole formed therein, a bottom wall, a first side wall, and a second side wall; and a strap assembly comprising a strap member having first and second ends, a snap fastener for fastening the strap member first end to the front wall, an inner panel attached to the second end of the strap member, and a hook and loop fastener for fastening the inner panel to the rear wall; whereby the strap member extends through the at least one hole in the rear wall such that the hook and loop fastener fastens the strap member second end to an outer surface of the rear wall.
  • 12. An adjustable pocket as recited in claim 11, in which a plurality of holes are formed in the rear wall, where the strap member extends through a selected one of the plurality of holes depending a desired form factor defined by the adjustable pocket.
  • 13. An adjustable pocket as recited in claim 11, further comprising a belt panel, where the belt panel is arranged behind the rear wall and is adapted to allow the adjustable pocket to be suspended from a belt.
  • 14. An adjustable pocket as recited in claim 11, in which the back wall is formed on a chest panel of a chest harness.
  • 15. An adjustable pocket as recited in claim 11, further comprising a backing panel that covers the hook and loop fastener.
  • 16. An adjustable pocket as recited in claim 15, further comprising a belt panel, where the backing panel is arranged between the rear wall and the belt panel and the belt panel is adapted to allow the adjustable pocket to be suspended from a belt.
  • 17. An adjustable pocket comprising:a pocket chamber adapted to contain equipment, where the pocket chamber is defined by a front wall, a rear wall having at least one hole formed therein, a bottom wall, a first side wall, and a second side wall; and a strap assembly comprising a strap member having first and second ends, a first fastener for fastening the strap member first end to the front wall, and a second fastener for fastening the strap member second end to the rear wall, where the second fastener is a hook and loop fastener; whereby the strap member extends through the at least one hole in the rear wall such that the second fastener fastens the strap member second end to an outer surface of the rear wall.
  • 18. An adjustable pocket as recited in claim 17, in which a plurality of holes are formed in the rear wall, where the strap member extends through a selected one of the plurality of holes depending a desired form factor defined by the adjustable pocket.
  • 19. An adjustable pocket as recited in claim 17, further comprising a belt panel, where the belt panel is arranged behind the rear wall and is adapted to allow the adjustable pocket to be suspended from a belt.
  • 20. An adjustable pocket as recited in claim 17, in which the back wall is formed on a chest panel of a chest harness.
  • 21. An adjustable pocket as recited in claim 17, further comprising a backing panel that covers the second fastener.
  • 22. An adjustable pocket as recited in claim 21, further comprising a belt panel, where the backing panel is arranged between the rear wall and the belt panel and the belt panel is adapted to allow the adjustable pocket to be suspended from a belt.
  • 23. An adjustable pocket as recited in claim 17, in which the strap assembly further comprises an inner panel attached to the second end of the strap member, where the second fastener fastens the inner panel to the rear wall.
  • 24. An adjustable pocket as recited in claim 23, in which one of a hook portion and a loop portion of the hook and loop fastener is formed on the inner panel.
  • 25. An adjustable pocket as recited in claim 24, in which one of the hook portion and the loop portion is formed on the rear wall.
  • 26. An adjustable pocket comprising:a pocket chamber adapted to contain equipment, where the pocket chamber is defined by a front wall, a rear wall having at least one hole formed therein, a bottom wall, a first side wall, and a second side wall; a strap assembly comprising a strap member having first and second ends, a first fastener for fastening the strap member first end to the front wall, and a second fastener for fastening the strap member second end to the rear wall; and a backing panel that covers the second fastener; whereby the strap member extends through the at least one hole in the rear wall such that the second fastener fastens the strap member second end to an outer surface of the rear wall.
  • 27. An adjustable pocket as recited in claim 26, in which the second fastener is a hook and loop fastener.
  • 28. An adjustable pocket as recited in claim 26, in which a plurality of holes are formed in the rear wall, where the strap member extends through a selected one of the plurality of holes depending a desired form factor defined by the adjustable pocket.
  • 29. An adjustable pocket as recited in claim 26, further comprising a belt panel, where the belt panel is arranged behind the rear wall and is adapted to allow the adjustable pocket to be suspended from a belt.
  • 30. An adjustable pocket as recited in claim 26, further comprising a belt panel, where the backing panel is arranged between the rear wall and the belt panel and the belt panel is adapted to allow the adjustable pocket to be suspended from a belt.
  • 31. An adjustable pocket as recited in claim 26, in which the back wall is formed on a chest panel of a chest harness.
  • 32. An adjustable pocket as recited in claim 26, in which the strap assembly further comprises an inner panel attached to the second end of the strap member, where the second fastener fastens the inner panel to the rear wall.
  • 33. An adjustable pocket as recited in claim 32, in which the second fastener is a hook and loop fastener, and one of a hook portion and a loop portion of the hook and loop fastener is formed on the inner panel.
  • 34. An adjustable pocket as recited in claim 33, in which one of the hook portion and the loop portion is formed on the rear wall.
  • 35. A method of forming an adjustable pocket comprising the steps of:providing a front wall, a rear wall having at least one hole formed therein, a bottom wall, a first side wall, and a second side wall; arranging the front wall, rear wall, bottom wall, first side wall, and second side wall to define a pocket chamber; providing a strap assembly comprising a strap member having first and second ends, a first fastener, and a second fastener; extending the strap member through the at least one hole in the rear wall such that the second fastener fastens the strap member second end to an outer surface of the rear wall to define a first form factor; operating the first fastener to fasten the strap member first end to the front wall; and adjusting a location at which the second fastener fastens the strap member second end to the outer surface of the rear wall to define a second form factor.
  • 36. A method as recited in claim 35, further comprising the steps of:forming a plurality of holes in the rear wall; and extending the strap member through a selected one of the plurality of holes to define a second form factor.
  • 37. A method as recited in claim 35, further comprising the step of covering the second fastener with a backing panel.
  • 38. A method of forming an adjustable pocket comprising the steps of:providing a front wall, a rear wall having at least one hole formed therein, a bottom wall, a first side wall, and a second side wall; arranging the front wall, rear wall, bottom wall, first side wall, and second side wall to define a pocket chamber; providing a strap assembly comprising a strap member having first and second ends, a first fastener, and a second fastener; extending the strap member through the at least one hole in the rear wall such that the second fastener fastens the strap member second end to an outer surface of the rear wall to define a first form factor; operating the first fastener to fasten the strap member first end to the front wall; and covering the second fastener with a backing panel.
  • 39. A method as recited in claim 38, further comprising the steps of:forming a plurality of holes in the rear wall; and extending the strap member through a selected one of the plurality of holes to define a second form factor.
RELATED APPLICATIONS

This application claims priority of U.S. Provisional Patent Application Ser. No. 60/158,293, which was filed on Oct. 8, 1999.

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Number Name Date Kind
4479596 Swanson Oct 1984 A
5511702 Yang Apr 1996 A
5653367 Abramson Aug 1997 A
5957357 Kallman Sep 1999 A
6056174 Minckler May 2000 A
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6202908 Groover Mar 2001 B1
Non-Patent Literature Citations (3)
Entry
Drawing, “Conterra” prior art (Exhibit A), undated.
Drawing, “Cascade Tobaggan” prior art (Exhibit B), undated.
Drawing, “Motorola & others” prior art (Exhibit C), undated.
Provisional Applications (1)
Number Date Country
60/158293 Oct 1999 US