Patent US2511049A successfully refreshed from Google Patents.
US2511049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-grip wrench having a flexible shank and a resilient, compressible, gripping member
Assignee: Individual
•
Filing: 1945-03-20
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Granted: 1950-06-13
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Expires: 1965-03-20
Abstract
No abstract record available.
Inventors
- 👤 Walter A Coldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:32
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/0007; B25B23/0021; B25B13/00; B25B13/48; B25B13/481; B25B13/50; B25B13/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US163217A
Cited
US1405896A
Cited
US1507990A
Cited
US1653995A
Cited
US1997878A
Cited
US2054138A
Cited
US2372930A
Cited
US2409590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |