Patent US2944128A successfully refreshed from Google Patents.
US2944128A
Expired / Lapsed
US
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Counter-directionally releasable circuit breaker
Assignee: Wadsworth Electric Manufacturing Co
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Filing: 1957-02-25
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Granted: 1960-07-05
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Expires: 1977-02-25
Abstract
No abstract record available.
Inventors
- 👤 William H Middendorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:24
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/1009; H01H71/1027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2416408A
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US2666828A
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US2692926A
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US2824191A
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US2779831A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |