US3552796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torsion bar chair control
Assignee: Stewart Warner Corp
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Filing: 1969-03-24
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Granted: 1971-01-05
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Expires: 1989-03-24
Abstract
Abstract THE FOLLOWING SPECIFICATION DESCRIBES A SEAT SUPPORT FOR A TORSION BAR CHAIN CONTROL IN WHICH THE SEAT SUPPORT INCLUDES A PAIR OF U-SHAPED CHANNEL SECTIONS EACH HAVING ONE END FIXED TO A RESPECTIVE BAR END AND INTERCONNECTED BY AN INTEGRALLY FORMED U-SHAPED BODY. THE BODY NESTS A U-SHAPED BRACKET WHICH ROTATABLY SUPPORTS THE BAR AND RENDERS THE STRUCTURE RIGID.
Inventors
- 👤 Philip J Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:55
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/025; A47C3/026; A47C7/00; A47C7/36; A47C7/40; A47C7/44; A47C7/441; A47C7/445; A47C7/4454
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |