Patent US1483906A successfully refreshed from Google Patents.
Patent US3972562A successfully refreshed from Google Patents.
US3972562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible furniture
Assignee: Individual
•
Filing: 1974-09-26
•
Granted: 1976-08-03
•
Expires: 1994-09-26
Abstract
Abstract The invention relates to a foldable chair having a back support which is pivotally connected to a seat support and arm rests which are pivotally connected to the back support and adapted to be rotated into a position in which they form a ground support for the back support when the latter is in a swung down extended position for forming a bed.
Inventors
- 👤 Bjorne Thorwald Montrose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:30
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/54; A47C7/543; A47C17/00; A47C17/04; A47C17/16; A47C17/18; A47C17/64; A47C4/00; A47C4/28; A47C4/42
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
177 words
A foldable chair comprising three rigid frames, one frame constituting a seat support having front and rear ground supports, a second one constituting a back support and a third one constituting two armrests, the back support frame being pivotally connected to the seat support frame, and the armrests frame being pivotally connected to the back support frame, both pivoting axes being horizontal and parallel to one with the other and spaced apart, and the shape and size of the armrests frame being such that said armrests frame is adapted to be pivoted to pass under said rear ground support of the seat support frame, into a position in which it forms a ground support for the back support frame when the latter is in a swung down extended position to form a bed device, the armrests frame supporting the back support frame when the armrests frame is thus supported on the ground, said armrests frame having a cross piece interconnecting said two armrests and disposed under said seat support frame when said back support frame is raised.
Claim 2
Dependent Claim
177 words
A foldable chair comprising three rigid frames, one frame constituting a seat support having front and rear ground supports, a second one constituting a back support and a third one constituting two armrests, the back support frame being pivotally connected to the seat support frame, and the armrests frame being pivotally connected to the back support frame, both pivoting axes being horizontal and parallel to one with the other and spaced apart, and the shape and size of the armrests frame being such that said armrests frame is adapted to be pivoted to pass under said rear ground support of the seat support frame, into a position in which it forms a ground support for the back support frame when the latter is in a swung down extended position to form a bed device, the armrests frame supporting the back support frame when the armrests frame is thus supported on the ground, said armrests frame having a cross piece interconnecting said two armrests and disposed under said seat support frame when said back support frame is raised.
Claim 3
Dependent Claim
32 words
A foldable chair as claimed in claim 1 further comprising means for releasably securing the armrests frame to the seat support frame for adjustment of the rake of the back support frame.
Claim 4
Dependent Claim
39 words
A foldable chair as claimed in claim 2, wherein said means comprise latching plates provided with a plurality of upwardly and forwardly directed notches and attached to the seat support frame, and cooperating with pins on the armrests frame.
Claim 5
Dependent Claim
48 words
A foldable chair as claimed in claim 1 further comprising a separate rigid frame, whose shape and size are such that said separate frame is frictionally and releasably fitted with the seat support frame to form an extension thereof when the chair is used as a bed device.
Claim 6
Dependent Claim
15 words
A foldable chair as claimed in claim 1, wherein the frames are of tubular construction.
Claim 7
Dependent Claim
41 words
A foldable chair as claimed in claim 1, wherein the pivotal connections are releasable, and wherein the frames are each constructed from bent tubular members some of the ends of which are adapted to be telescoped for quick and easy assembly.
References Cited (Backward Citations)
US464153A
Cited
US746446A
Cited
US893095A
Cited
US898399A
Cited
US1232357A
Cited
US1400718A
Cited
US2282270A
Cited
CH224185A
Cited
US2679892A
Cited
US3151342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-03 | 1980-02-02 | 1980-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-03 | 1984-02-02 | 1984-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-03 | 1988-02-02 | 1988-08-03 | $7700.00 | Window Closed / Lapsed |