Patent US2989604A successfully refreshed from Google Patents.
US2989604A
Expired / Lapsed
US
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Circuit breaker
Assignee: General Electric Co
•
Filing: 1957-04-04
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Granted: 1961-06-20
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Expires: 1977-04-04
Abstract
No abstract record available.
Inventors
- 👤 Emery M Wegh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:44
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/02; H01H71/0207; H01H71/0214; H01H73/00; H01H73/02; H01H73/18; H01H73/48; H01H73/50; H01H2071/0242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2059985A
Cited
US2050285A
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US2013827A
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US2329053A
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US2624816A
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US2695345A
Cited
US2669627A
Cited
US2811607A
Cited
US2783330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |