Patent US2962569A successfully refreshed from Google Patents.
US2962569A
Expired / Lapsed
US
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Circuit breaker
Assignee: Westinghouse Electric Corp
•
Filing: 1957-06-10
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Granted: 1960-11-29
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Expires: 1977-06-10
Abstract
No abstract record available.
Inventors
- 👤 Francis L Gelzheiser
- 👤 Robert H Flick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:05
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/40; H01H71/02; H01H71/0207; H01H71/0214
Claims Analysis
Total Claims: 0
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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) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |