Patent US3857604A successfully refreshed from Google Patents.
US3857604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding chairs
Assignee: Hille International Ltd
•
Filing: 1973-07-05
•
Granted: 1974-12-31
•
Expires: 1993-07-05
Abstract
Abstract The present invention is directed to a folding chair comprising a ground frame and seat and back portions in which the ground frame has two pairs of legs, each pair pivotally connected at their ends remote from the ground, the seat is pivotally mounted between one opposing leg of each pair and slidably supported between the other opposing leg of each pair so that the seat is capable of folding into a flat position between the legs when the chair is not in use, and the back portion is mounted for limited pivotal movement between the pairs of legs.
Inventors
- 👤 F Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:34
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/04; A47C4/18; A47C4/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
198 words
A folding chair comprising a back rest member having opposite arm rests which include terminal ends, a pair of front legs, a pair of rear legs, a seat, a pivotal connection joining one of said terminal ends to one front leg and one rear leg, a pivotal connection joining the other of said terminal ends to the other front leg and the other rear leg, said back rest and said legs being relatively movabale about said pivotal connections between a folded position in which the back rest and legs extend in opposite directions from the pivots in a substantially common plane and an erected position in which the front and rear legs extend at an acute angle to one another, abutment means between at least one of said terminal ends and one of said legs pivotally connected thereto for supporting said back rest in a substantially horizontal plane, pivots connecting said seats to the legs of one of said pairs, and sliding connections connecting the seat to the legs of the other of said pairs for movement of said seat between a folded position substantially in said common plane and an erected position in a substantially horizontal plane.
Claim 2
Dependent Claim
198 words
A folding chair comprising a back rest member having opposite arm rests which include terminal ends, a pair of front legs, a pair of rear legs, a seat, a pivotal connection joining one of said terminal ends to one front leg and one rear leg, a pivotal connection joining the other of said terminal ends to the other front leg and the other rear leg, said back rest and said legs being relatively movabale about said pivotal connections between a folded position in which the back rest and legs extend in opposite directions from the pivots in a substantially common plane and an erected position in which the front and rear legs extend at an acute angle to one another, abutment means between at least one of said terminal ends and one of said legs pivotally connected thereto for supporting said back rest in a substantially horizontal plane, pivots connecting said seats to the legs of one of said pairs, and sliding connections connecting the seat to the legs of the other of said pairs for movement of said seat between a folded position substantially in said common plane and an erected position in a substantially horizontal plane.
Claim 3
Dependent Claim
22 words
The chair as defined in claim 1 wherein said pairs of legs are each formed by a single generally a U-shaped member.
Claim 4
Dependent Claim
24 words
The chair as defined in claim 1 wherein each terminal end is sandwiched between said front and rear legs at the pivotal connections thereof.
Claim 5
Dependent Claim
23 words
The chair as defined in claim 1 wherein said back rest member and arm are of an integral one-piece unitary synthetic plastic molding.
Claim 6
Dependent Claim
37 words
The chair as defined in claim 4 wherein said abutment means is an integral molded abutment surface of said terminal ends for abutting at least said rear legs at the pivotal connection thereof to said terminal ends.
References Cited (Backward Citations)
US2294340A
Cited
US2525876A
Cited
US2789623A
Cited
US2991123A
Cited
FR1425235A
Cited
US3450432A
Cited
US3756166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |