Patent US2661647A successfully refreshed from Google Patents.
US2661647A
Expired / Lapsed
US
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Ratchet type impact tool
Assignee: Individual
•
Filing: 1950-07-11
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Granted: 1953-12-08
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Expires: 1970-07-11
Abstract
No abstract record available.
Inventors
- 👤 Oscar J Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:13
CPC Classifications
B; B25; B25B; B25B19/00; B25B13/00; B25B13/46; B25B13/461; B25B13/462; B25B13/463; B25B23/00; B25B23/14; B25B23/142; B25B23/1422; B25B23/1427
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1860871A
Cited
US2119963A
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US2122693A
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US2205501A
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US2271803A
Cited
US2342783A
Cited
US2378956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |