US2769055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic reclosing circuit breakers
Assignee: Westinghouse Electric Corp
•
Filing: 1951-05-15
•
Granted: 1956-10-30
•
Expires: 1971-05-15
Abstract
No abstract record available.
Inventors
- 👤 James M Wallace
- 👤 Alfred R Mcclung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:50
CPC Classifications
H; H01; H01H; H01H75/00; H01H75/02; H01H75/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1288017A
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US1288500A
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US1344196A
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US1795198A
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US2068620A
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US2459327A
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US2442477A
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US2487025A
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US2560529A
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US2560831A
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US2626329A
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US2590523A
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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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |