Patent US2643345A successfully refreshed from Google Patents.
US2643345A
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Means for governing power stations
Assignee: ABB Norden Holding AB
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Filing: 1951-01-05
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Granted: 1953-06-23
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Expires: 1971-01-05
Abstract
No abstract record available.
Inventors
- 👤 Almstrom Knut
- 👤 Hedstrom Sven Eric
- 👤 Brodersen Einar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:02
CPC Classifications
B; B60; B60L; B60L50/00; B60L50/10; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T10/7072
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2054121A
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US1985081A
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US2039429A
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US1984920A
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US2050238A
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US2054411A
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US2615466A
Cited
US2504768A
Cited
US2558729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |