US2454223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable separable fastener
Assignee: Individual
•
Filing: 1944-08-09
•
Granted: 1948-11-16
•
Expires: 1964-08-09
Abstract
No abstract record available.
Inventors
- 👤 Shippee Winsor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:00
CPC Classifications
F; F16; F16B; F16B19/00; F16B19/02; F16B21/00; F16B21/02; F16B21/10; F16B21/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1890348A
Cited
US2200702A
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US2183085A
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US2230916A
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US2252286A
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US2342170A
Cited
US2334188A
Cited
US2337483A
Cited
US2372496A
Cited
US2419108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |