Patent US2512154A successfully refreshed from Google Patents.
US2512154A
Expired / Lapsed
US
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Electronic prime mover regulator
Assignee: Westinghouse Electric Corp
•
Filing: 1948-05-19
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Granted: 1950-06-20
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Expires: 1968-05-19
Abstract
No abstract record available.
Inventors
- 👤 Seymour W Herwald
- 👤 Harold M Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:05
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/20; F01D17/22; F01D17/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1485865A
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US1505853A
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US1610628A
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US1669524A
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US2015861A
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US2404968A
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US2332910A
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US2407982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |