Patent US3374420A successfully refreshed from Google Patents.
US3374420A
Expired / Lapsed
US
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Power control device having an overload current circuit
Assignee: Superior Electric Co
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Filing: 1964-10-06
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Granted: 1968-03-19
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Expires: 1984-10-06
Abstract
No abstract record available.
Inventors
- 👤 Jr John P Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:02
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/10; H02H7/12; G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/40; G05F1/44; G05F1/445
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) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |