Patent US3001428A successfully refreshed from Google Patents.
US3001428A
Expired / Lapsed
US
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Rotary impact wrench
Assignee: MASTER POWER CORP
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Filing: 1960-02-23
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Granted: 1961-09-26
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Expires: 1980-02-23
Abstract
No abstract record available.
Inventors
- 👤 William F Sindelar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:21
CPC Classifications
B; B25; B25B; B25B21/00; B25B21/02; B25B21/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2160150A
Cited
US2539678A
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US2753965A
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FR1057422A
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US2745528A
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US2712254A
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US2825436A
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US2881884A
Cited
US2940565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |