Patent US3796999A successfully refreshed from Google Patents.
US3720965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Back support
Assignee: Individual
•
Filing: 1971-07-23
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Granted: 1973-03-20
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Expires: 1991-07-23
Abstract
Abstract A back support for use with a bed having a headboard, in which a back member has an upper edge adapted to bear against the headboard and a lower edge carrying a rearwardly extending arm having a flange adapted to bear against the mattress or frame of the bed. A seat may extend forwardly from the lower edge of the back member.
Inventors
- 👤 H Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:36
CPC Classifications
A; A47; A47C; A47C20/00; A47C20/02; A47C20/027
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
111 words
A back support for use with a bed having a mattress and a head board, comprising: A BACK MEMBER SLOPING FROM A LOWER EDGE PORTION UPWARDLY AND REARWARDLY TO TERMINATE IN AN UPPER EDGE LYING IN A VERTICAL PLANE; A FIXED SEAT EXTENDING FORWARDLY FROM THE LOWER EDGE PORTION OF THE BACK MEMBER; AND A FIXED ARM EXTENDING REARWARDLY FROM THE LOWER EDGE PORTION OF THE BACK MEMBER AND TERMINATING IN A DOWNWARDLY EXTENDING FLANGE LYING IN A VERTICAL PLANE PARALLEL TO THE VERTICAL PLANE OF THE UPPER EDGE OF THE BACK MEMBER WHEREBY SAID UPPER EDGE LIES AGAINST THE HEADBOARD WHEN THE SEAT AND THE FLANGE LIE AGAINST THE MATTRESS.
Claim 2
Dependent Claim
111 words
A back support for use with a bed having a mattress and a head board, comprising: A BACK MEMBER SLOPING FROM A LOWER EDGE PORTION UPWARDLY AND REARWARDLY TO TERMINATE IN AN UPPER EDGE LYING IN A VERTICAL PLANE; A FIXED SEAT EXTENDING FORWARDLY FROM THE LOWER EDGE PORTION OF THE BACK MEMBER; AND A FIXED ARM EXTENDING REARWARDLY FROM THE LOWER EDGE PORTION OF THE BACK MEMBER AND TERMINATING IN A DOWNWARDLY EXTENDING FLANGE LYING IN A VERTICAL PLANE PARALLEL TO THE VERTICAL PLANE OF THE UPPER EDGE OF THE BACK MEMBER WHEREBY SAID UPPER EDGE LIES AGAINST THE HEADBOARD WHEN THE SEAT AND THE FLANGE LIE AGAINST THE MATTRESS.
Claim 3
Dependent Claim
34 words
A device as claimed in claim 1 in which the downwardly extending flange of the fixed arm lies in a plane coincident with the vertical plane of the upper edge of the back member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |