US3672722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Invalid chair having adjustable headrest seat and footrest
Assignee: Lumex Inc
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Filing: 1970-05-01
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Granted: 1972-06-27
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Expires: 1990-05-01
Abstract
Abstract AN INVALID CHAIR HAS A PAIR OF FIXED LATERAL FRAME MEMBERS WHICH SUPPORT A PAIR OF UPRIGHT TUBULAR MEMBERS AND A FOOTREST ASSEMBLY ANGULARLY ADJUSTABLE UP AND DOWN THE TUBULAR MEMBERS. THE FRAME MEMBERS ALSO SUPPORT A SEAT WHICH IS ADJUSTABLE POSITIONABLE BETWEEN THE FRAME MEMBERS. A BACKREST IS SECURED BETWEEN THE FRAME MEMBERS AND ADJUSTABLY SUPPORTS A HEADREST.
Inventors
- 👤 Charles E Murcott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:33
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/022; A47C1/023; A47C7/00; A47C7/36; A47C7/38; A47C7/50; A47C7/506; A47C7/5062; A47C7/5064; A61; A61G; A61G5/00; A61G5/10; A61G5/1094; A61G5/12; A61G5/121; A61G5/125; A61G5/128; A61G5/1056; A61G5/1075; Y; Y10; Y10S; Y10S297/00; Y10S297/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |