Patent US2544165A successfully refreshed from Google Patents.
US2544165A
Expired / Lapsed
US
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Power-operated semiautomatic screw driver
Assignee: AIR A FEED EQUIPMENT Inc
•
Filing: 1948-06-05
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Granted: 1951-03-06
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Expires: 1968-06-05
Abstract
No abstract record available.
Inventors
- 👤 Leonard L Krasnow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:34
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/04; A; A43; A43D; A43D71/00; B23; B23P; B23P19/00; B23P19/04; B23P19/06; B25B; B25B23/00; B25B23/02; B25B23/04; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/06; B65G47/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US950534A
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US1499887A
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US1813697A
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US1703458A
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US1921485A
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US1980967A
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US2266302A
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US2373992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |