Patent US3823974A successfully refreshed from Google Patents.
Patent US2808749A successfully refreshed from Google Patents.
US2808749A
Expired / Lapsed
US
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Gear operated power wrench
Assignee: Individual
•
Filing: 1956-05-08
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Granted: 1957-10-08
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Expires: 1976-05-08
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Lampke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:59
CPC Classifications
B; B25; B25B; B25B21/00; B25B21/002; B25B13/00; B25B13/46; B25B13/461; B25B13/466; B25B13/467; B25B21/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR601440A
Cited
US2119968A
Cited
US2491624A
Cited
US2614418A
Cited
US2614419A
Cited
US2703030A
Cited
US2701490A
Cited
US2723580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |