US2920261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control systems for generators
Assignee: Westinghouse Electric Corp
•
Filing: 1954-12-30
•
Granted: 1960-01-05
•
Expires: 1974-12-30
Abstract
No abstract record available.
Inventors
- 👤 Herman J Braun
- 👤 George H Stearley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:15
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/10; H02P9/102; H02P9/14; H02P9/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2456938A
Cited
US2524166A
Cited
US2769133A
Cited
US2724797A
Cited
US2725517A
Cited
US2709776A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |