US2564638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener device
Assignee: United Carr Fastener Corp
•
Filing: 1946-07-23
•
Granted: 1951-08-14
•
Expires: 1966-07-23
Abstract
No abstract record available.
Inventors
- 👤 Wilmer H Churchill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:22
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/06; F16B21/08; F16B21/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1056452A
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US1127090A
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US2191412A
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US2138195A
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US2142429A
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US2137210A
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US2229996A
Cited
US2267873A
Cited
US2295449A
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US2391298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |