US2648813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulating system
Assignee: Westinghouse Electric Corp
•
Filing: 1951-03-14
•
Granted: 1953-08-11
•
Expires: 1971-03-14
Abstract
No abstract record available.
Inventors
- 👤 Schuyler L Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:33
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/14; H02P9/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2138732A
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US2464551A
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US2482482A
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US2443665A
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US2509865A
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US2447655A
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US2475575A
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US2541820A
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US2477991A
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US2549250A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |