Patent US2691708A successfully refreshed from Google Patents.
US2691708A
Expired / Lapsed
US
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Circuit breaker
Assignee: Westinghouse Electric Corp
•
Filing: 1951-10-10
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Granted: 1954-10-12
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Expires: 1971-10-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Drobney
- 👤 Hiller D Dorfman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:22
CPC Classifications
H; H01; H01H; H01H73/00; H01H73/48; H01H73/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2328458A
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US2255330A
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US2360684A
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US2370024A
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US2443090A
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US2558908A
Cited
US2534938A
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US2573306A
Cited
US2568423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |