US2904655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker
Assignee: Westinghouse Electric Corp
•
Filing: 1954-10-28
•
Granted: 1959-09-15
•
Expires: 1974-10-28
Abstract
No abstract record available.
Inventors
- 👤 Francis L Gelzheiser
- 👤 Robert H Flick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:23
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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References Cited (Backward Citations)
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US2378648A
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US2677026A
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US2677734A
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US2573307A
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US2626331A
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US2700086A
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US2638519A
Cited
US2668206A
Cited
US2719203A
Cited
US2732455A
Cited
US2811607A
Cited
US2797277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |