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Patent US2793552A successfully refreshed from Google Patents.
US2793552A
Expired / Lapsed
US
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Magnetic socket wrench having spaced pole pieces
Assignee: Individual
•
Filing: 1956-05-09
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Granted: 1957-05-28
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Expires: 1976-05-09
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:36
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/02; B25B23/08; B25B23/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |