US2651056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable back or headrest mechanism
Assignee: Individual
•
Filing: 1949-02-18
•
Granted: 1953-09-08
•
Expires: 1969-02-18
Abstract
No abstract record available.
Inventors
- 👤 Billet Philip
- 👤 Levy Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:38
CPC Classifications
A; A47; A47C; A47C20/00; A47C20/04; A47C20/047; A47C1/00; A47C1/02; A47C1/022; A47C1/024; A47C1/027; A47C7/00; A47C7/36; A47C7/40; A47C7/402
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE270839C
Cited
US852255A
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US990399A
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US1060655A
Cited
US1219959A
Cited
US1184840A
Cited
US1841278A
Cited
US2008553A
Cited
GB551813A
Cited
US2390660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |