US2492470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque-reducing wrench
Assignee: American Locomotive Co
•
Filing: 1945-11-29
•
Granted: 1949-12-27
•
Expires: 1965-11-29
Abstract
No abstract record available.
Inventors
- 👤 George B Farkas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:20
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/14; B25B23/142; B25B23/1422; B25B23/1427; B25B17/00; B25B17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US378299A
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US452237A
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US732017A
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US769814A
Cited
US1169670A
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US1355597A
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US1778055A
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US2311225A
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US2385591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |