Patent US2758494A successfully refreshed from Google Patents.
US2758494A
Expired / Lapsed
US
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Extensible wrench set with magnetized heads
Assignee: Individual
•
Filing: 1955-05-31
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Granted: 1956-08-14
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Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 Billy J Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:25
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/56; B25B23/00; B25B23/02; B25B23/08; B25B23/12; Y; Y10; Y10S; Y10S403/00; Y10S403/01; Y10S7/00; Y10S7/901; Y10S81/00; Y10S81/90; Y10T; Y10T279/00; Y10T279/23
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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |