US2641814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separable fastener
Assignee: Tinnerman Products Inc
•
Filing: 1951-01-25
•
Granted: 1953-06-16
•
Expires: 1971-01-25
Abstract
No abstract record available.
Inventors
- 👤 Richard A Hartman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:53
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/10; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/97
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1857530A
Cited
US2298568A
Cited
US2341829A
Cited
US2439975A
Cited
US2362679A
Cited
US2504358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |