US4244619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding chair
Assignee: Individual
•
Filing: 1979-05-16
•
Granted: 1981-01-13
•
Expires: 1999-05-16
Abstract
Abstract The folding chair has uniquely hinged components so that it may be folded into a small, compact unit. Side supports are mounted so as to lie substantially parallel to the back support when folded, and to extend substantially perpendicularly from the back support when unfolded. The back of the chair is pivotally mounted on the back portion so that it rests against the outer surface of the back support when the chain is folded and it rests at a slight angle to the vertical plane between the side supports when the chair is unfolded. Pivotally mounted on the back of the chair is a seat which rests substantially parallel to the back when the chair is folded and rests in a substantially horizontal plane between the side supports when the chair is unfolded.
Inventors
- 👤 Junzo Yoshimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:02
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/04; A47C4/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
147 words
A folding chair comprising: a back support; two side supports movably mounted on said back support, such that said back support and said side supports lie in substantially parallel planes when said chair is folded, and said side supports extend substantially perpendicularly from said back support when said chair is unfolded; a back portion movably mounted on said back support, such that said back portion rests substantially parallel and adjacent a rear portion of said back support when said chair is folded, and said back portion rests against a front portion of said back support between said side supports when said chair is unfolded; and a seat movably mounted on said back portion, such that said seat rests substantially parallel to said back portion when said chair is folded, and said seat rests in a substantially horizontal plane between said side supports when said chair is unfolded.
Claim 2
Dependent Claim
147 words
A folding chair comprising: a back support; two side supports movably mounted on said back support, such that said back support and said side supports lie in substantially parallel planes when said chair is folded, and said side supports extend substantially perpendicularly from said back support when said chair is unfolded; a back portion movably mounted on said back support, such that said back portion rests substantially parallel and adjacent a rear portion of said back support when said chair is folded, and said back portion rests against a front portion of said back support between said side supports when said chair is unfolded; and a seat movably mounted on said back portion, such that said seat rests substantially parallel to said back portion when said chair is folded, and said seat rests in a substantially horizontal plane between said side supports when said chair is unfolded.
Claim 3
Dependent Claim
29 words
A folding chair according to claim 1, wherein said back portion is mounted such that said back portion is in a substantially vertical plane when said chair is unfolded.
Claim 4
Dependent Claim
31 words
A folding chair according to claim 1, wherein said back portion is mounted such that said back portion is at an angle to a vertical plane when said chair is unfolded.
Claim 5
Dependent Claim
32 words
A folding chair according to claim 3, wherein said back support is provided with a support means against which a lower portion of the back portion rests when said chair is unfolded.
Claim 6
Dependent Claim
31 words
A folding chair according to claim 1, wherein said back support is provided with means for engaging a top surface of one of said side supports when said chair is folded.
Claim 7
Dependent Claim
13 words
A folding chair according to claim 1, wherein said seat comprises a cushion.
Claim 8
Dependent Claim
14 words
A folding chair according to claim 1, wherein said back portion comprises a cushion.
Claim 9
Dependent Claim
13 words
A folding chair according to claim 7, wherein said seat comprises a cushion.
Claim 10
Dependent Claim
58 words
A folding chair according to either of claims 1, 3, 6, 7 or 8, wherein a guide is provided on an inner surface of one of said side supports; and a guide rail is provided on an outer side surface of said seat, such that said guide rail is received in said guide when said chair is unfolded.
Claim 11
Dependent Claim
59 words
A folding chair according to claim 9, wherein holding members are provided on said inner surfaces of said side supports; and wherein front support is pivotally mounted on a front end of said seat, such that said front support extends substantially perpendicularly from said seat and is held in place by said holding members when said chair is unfolded.
Claim 12
Dependent Claim
23 words
A folding chair according to claim 1, wherein said side supports lie in substantially the same parallel plane when said chair is folded.
Claim 13
Dependent Claim
22 words
A folding chair according to claim 1, wherein said side supports lie in separate substantially parallel planes when said chair is folded.
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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) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |