Patent US2575709A successfully refreshed from Google Patents.
US2575709A
Expired / Lapsed
US
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Circuit breaker
Assignee: Westinghouse Electric Corp
•
Filing: 1946-10-30
•
Granted: 1951-11-20
•
Expires: 1966-10-30
Abstract
No abstract record available.
Inventors
- 👤 George G Grissinger
- 👤 Bernard G Tremblay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:06
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/1054; Y; Y10; Y10T; Y10T74/00; Y10T74/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1231367A
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US1983188A
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US2162511A
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US2152453A
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US2353406A
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US2337565A
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US2385292A
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US2385293A
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US2382995A
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US2399336A
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US2467200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |