Patent US3985387A successfully refreshed from Google Patents.
US3985387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Back pack chair
Assignee: Individual
•
Filing: 1975-05-02
•
Granted: 1976-10-12
•
Expires: 1995-05-02
Abstract
Abstract A collapsible back pack chair adapted to be carried on the back of a user. The chair comprises a frame having a seat pivotally attached to its bottom edge. The seat has an elongated leg mounted on its bottom surface which forms a unit therewith. In use, the frame is attached to the back of the user through utilization of straps or the like. When the frame is so attached to the back of the user, the seat and leg may be pivoted as a unit from a stored position in which the leg is upright, adjacent to the frame, to an open position in which the free end of the leg is brought into contact with the ground, thereby providing support for the seat which will be located beneath the user in a position for sitting thereon.
Inventors
- 👤 Bernard J. Rischar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:01
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/52; A45; A45F; A45F3/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
127 words
A collapsible back pack chair adapted to be carried on the back of a user, said chair comprising: a frame adapted for attachment to the back of a user and having a bottom edge; a seat having one edge including a pivotal member in cooperation with the bottom edge of said frame; a leg extending from the bottom of said seat; means associated with said pivotal member for automatically folding said seat and leg from an open to a stored position when said user releases his weight from the open chair, said leg extending upwardly and adjacent to said frame when said chair is in said stored position; and means for attaching said chair to the user comprising waist and shoulder straps operably connected to said frame.
Claim 2
Dependent Claim
127 words
A collapsible back pack chair adapted to be carried on the back of a user, said chair comprising: a frame adapted for attachment to the back of a user and having a bottom edge; a seat having one edge including a pivotal member in cooperation with the bottom edge of said frame; a leg extending from the bottom of said seat; means associated with said pivotal member for automatically folding said seat and leg from an open to a stored position when said user releases his weight from the open chair, said leg extending upwardly and adjacent to said frame when said chair is in said stored position; and means for attaching said chair to the user comprising waist and shoulder straps operably connected to said frame.
Claim 3
Dependent Claim
47 words
The back pack chair of claim 1 where the bottom edge of said frame comprises a forwardly extending flange disposed perpendicular to said frame, and said seat and said leg fold 180° to said stored position whereby said leg is adjacent the back surface of said frame.
Claim 4
Dependent Claim
24 words
The back pack chair of claim 1 wherein said folding means is adapted to hold said seat and said leg in said stored position.
Claim 5
Dependent Claim
20 words
The back pack chair of claim 1 wherein said folding means comprises a torsion spring mounted on said pivotal member.
Claim 6
Dependent Claim
16 words
The back pack chair of claim 1 including means for adjusting the length of said leg.
Claim 7
Dependent Claim
18 words
The back pack chair of claim 1 including means for vertically adjusting said attaching means on said frame.
References Cited (Backward Citations)
US279398A
Cited
US359921A
Cited
US376886A
Cited
US699932A
Cited
US690122A
Cited
US1244911A
Cited
US2099345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |