US2474247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal type torque indicating wrench
Assignee: Individual
•
Filing: 1944-07-08
•
Granted: 1949-06-28
•
Expires: 1964-07-08
Abstract
No abstract record available.
Inventors
- 👤 Hattan Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:34
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/14; B25B23/142; B25B23/1422; B25B23/1427
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1304423A
Cited
US1122100A
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US1662424A
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US1519800A
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FR636170A
Cited
US2190862A
Cited
DE675755C
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DE679042C
Cited
US2250941A
Cited
US2303411A
Cited
US2371901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |