Patent US2789186A successfully refreshed from Google Patents.
US2789186A
Expired / Lapsed
US
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Electric circuit breaker
Assignee: General Electric Co
•
Filing: 1955-05-31
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Granted: 1957-04-16
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Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 Thellwell R Coggeshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:27
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/88; H01H33/90; H01H33/92
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1728829A
Cited
US2286023A
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US2420872A
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US2566095A
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US2578204A
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US2578349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |