Patent US4304437A successfully refreshed from Google Patents.
US4304437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable chair suspended from a single point
Assignee: Individual
•
Filing: 1979-06-22
•
Granted: 1981-12-08
•
Expires: 1999-06-22
Abstract
Abstract A zero gravity chair is provided wherein a person is supported in an extremely comfortable manner. The chair utilizes only a single suspension point and a novel feature of the invention is that it is readily adjustable to accommodate individual preferences.
Inventors
- 👤 Michael C. Longo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:54
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/025; A47C3/0255; A63; A63G; A63G9/00; A63G9/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
122 words
An adjustable chair suspended from a single point comprising in combination: a. a generally rectangular back having side members, b. a seat member pivotally connected to said back member c. a support member comprising a generally A-shaped frame with the bottom legs of the A pivotally mounted with the top edges of the back member, d. a single support member extending upwardly from the vertex of the A-shaped frame, e. a first flexible member connecting said vertex to the bottom of said seat member, f. a second flexible member connecting said vertex to points at approximately the centers of said side members, and said second flexible member being adjustable whereby the angle which said back makes wit the horizon can be varied.
Claim 2
Dependent Claim
122 words
An adjustable chair suspended from a single point comprising in combination: a. a generally rectangular back having side members, b. a seat member pivotally connected to said back member c. a support member comprising a generally A-shaped frame with the bottom legs of the A pivotally mounted with the top edges of the back member, d. a single support member extending upwardly from the vertex of the A-shaped frame, e. a first flexible member connecting said vertex to the bottom of said seat member, f. a second flexible member connecting said vertex to points at approximately the centers of said side members, and said second flexible member being adjustable whereby the angle which said back makes wit the horizon can be varied.
Claim 3
Dependent Claim
28 words
The structure of claim 1 wherein the length of said first flexible member is adjustable whereby the angle between the back member and the seat member is adjustable.
References Cited (Backward Citations)
US285665A
Cited
US296775A
Cited
US303551A
Cited
US424329A
Cited
US461541A
Cited
US3256016A
Cited
US3420522A
Cited
US3528657A
Cited
US3734494A
Cited
US3806117A
Cited
DE2220926A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-07 | 1985-06-08 | 1985-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-07 | 1989-06-08 | 1989-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-07 | 1993-06-08 | 1993-12-08 | $7700.00 | Window Closed / Lapsed |