US2630857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attaching device for chair backs
Assignee: Individual
•
Filing: 1951-02-03
•
Granted: 1953-03-10
•
Expires: 1971-02-03
Abstract
No abstract record available.
Inventors
- 👤 Morton R Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:35
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/42; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4974; Y10T403/55; Y10T403/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1083697A
Cited
FR524194A
Cited
US1659572A
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US1734340A
Cited
US1817775A
Cited
US1871668A
Cited
US1813072A
Cited
US1880133A
Cited
US2306878A
Cited
US2525126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |