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US2773660A
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Fail safe power boost system
Assignee: Westinghouse Electric Corp
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Filing: 1953-08-20
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Granted: 1956-12-11
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Expires: 1973-08-20
Abstract
No abstract record available.
Inventors
- 👤 Arne P Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:53
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/0055; G05D1/0061; F; F04; F04D; F04D15/00; F04D15/0066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US588946A
Cited
US1628603A
Cited
GB453928A
Cited
US2487116A
Cited
US2621872A
Cited
US2672307A
Cited
US2646947A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |