Patent US2510077A successfully refreshed from Google Patents.
US2510077A
Expired / Lapsed
US
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Portable self-locking clamp
Assignee: Individual
•
Filing: 1945-08-21
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Granted: 1950-06-06
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Expires: 1965-08-21
Abstract
No abstract record available.
Inventors
- 👤 Ralph K Coffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:45
CPC Classifications
B; B25; B25B; B25B5/00; B25B5/06; B25B5/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US923805A
Cited
US1403825A
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US1567210A
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US1659342A
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US2340316A
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US2407436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-05 | 1953-12-05 | 1954-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-05 | 1957-12-05 | 1958-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-05 | 1961-12-05 | 1962-06-06 | $7700.00 | Window Closed / Lapsed |