Patent US2476486A successfully refreshed from Google Patents.
US2476486A
Expired / Lapsed
US
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Power-operated wrench
Assignee: Individual
•
Filing: 1945-04-03
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Granted: 1949-07-19
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Expires: 1965-04-03
Abstract
No abstract record available.
Inventors
- 👤 Duncan H Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:52
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/14; B25B23/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1298007A
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US1812816A
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US2155205A
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US2159232A
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US2292146A
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US2397519A
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US2374400A
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US2385419A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |