US4056857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible backpack and cot construction
Assignee: Individual
•
Filing: 1976-07-19
•
Granted: 1977-11-08
•
Expires: 1996-07-19
Abstract
Abstract A backpack including a tubular frame whose ends are extensible to elongate the frame to form a cot. A canvas cover on the backpack frame is also extended to serve as a support for the body of the user on the frame and is attached to the extended frame portion.
Inventors
- 👤 Reginald L. Quantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:14
CPC Classifications
A; A45; A45F; A45F4/00; A45F4/02; A45F4/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
154 words
A convertible backpack and cot construction comprising: a first horizontal substantially U-shaped tubular frame having an extensible bight portion and a first pair of telescoping leg assemblies connected to said bight portion said leg assemblies including relatively movable inner and outer legs, said inner legs being movable relative to said outer legs and connected to said bight portion permitting the extension of said bight portion relative to said outer legs; a second horizontal substantially U-shaped tubular frame having an extensible bight portion and a second pair of telescoping leg assemblies connected to said bight portion said leg assemblies including relatively movable inner and outer legs, said inner legs being movable relative to said outer legs and connected to said bight portion permitting the extension of said bight portion relative to said outer legs; the outer legs of said first and second telescoping leg assemblies of said first and second tubular frames being in abutment;
Claim 2
Dependent Claim
154 words
A convertible backpack and cot construction comprising: a first horizontal substantially U-shaped tubular frame having an extensible bight portion and a first pair of telescoping leg assemblies connected to said bight portion said leg assemblies including relatively movable inner and outer legs, said inner legs being movable relative to said outer legs and connected to said bight portion permitting the extension of said bight portion relative to said outer legs; a second horizontal substantially U-shaped tubular frame having an extensible bight portion and a second pair of telescoping leg assemblies connected to said bight portion said leg assemblies including relatively movable inner and outer legs, said inner legs being movable relative to said outer legs and connected to said bight portion permitting the extension of said bight portion relative to said outer legs; the outer legs of said first and second telescoping leg assemblies of said first and second tubular frames being in abutment;
Claim 3
Dependent Claim
72 words
means for retaining the outer legs of said first and second leg assemblies in abutment; a first and second vertical substantially U-shaped frame having their legs depending from opposite ends of the second pair of telescoping leg assemblies of said second horizontal U-shaped tubular frame with the bight portions of each vertical frame being adapted to support said horizontal frames on a surface; and cover means for said horizontal and vertical frames.
Claim 4
Dependent Claim
72 words
means for retaining the outer legs of said first and second leg assemblies in abutment; a first and second vertical substantially U-shaped frame having their legs depending from opposite ends of the second pair of telescoping leg assemblies of said second horizontal U-shaped tubular frame with the bight portions of each vertical frame being adapted to support said horizontal frames on a surface; and cover means for said horizontal and vertical frames.
Claim 5
Dependent Claim
34 words
A convertible backpack and cot construction in accordance with claim 1 including a pair of concave braces between the second outer legs of said telescoping leg assemblies of said second horizontal U-shaped tubular frame.
Claim 6
Dependent Claim
66 words
A convertible backpack and cot construction in accordance with claim 1 wherein said cover means comprises: a central body portion having lateral flaps; the central body portion covering the space between the first and second outer legs of said telescoping leg assemblies of said first and second horizontal frames with said lateral flaps encircling the same; and means between said lateral flaps for connecting them together.
Claim 7
Dependent Claim
70 words
A convertible backpack and cot construction in accordance with claim 3 wherein said central body portion includes longitudinal flaps, and said longitudinal flaps include means for connecting said longitudinal flaps to the first and second horizontal frames when their respective first and second telescoping leg assemblies are extended and for connecting said flaps to each other about said first and second vertical frames when said telescoping leg assemblies are retracted.
Claim 8
Dependent Claim
33 words
A convertible backpack and cot construction in accordance with claim 1 wherein said means for retaining said first and second outer legs of said leg assemblies in abutment include a plurality of straps.
Claim 9
Dependent Claim
16 words
A convertible backpack and cot construction in accordancee with claim 5 wherein said straps include eyebolts.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-07 | 1981-05-09 | 1981-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-07 | 1985-05-09 | 1985-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-07 | 1989-05-09 | 1989-11-08 | $7700.00 | Window Closed / Lapsed |