Patent US2773191A successfully refreshed from Google Patents.
US2773191A
Expired / Lapsed
US
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Automatic frequency control
Assignee: The General Electric Company PLC
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Filing: 1950-10-25
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Granted: 1956-12-04
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Expires: 1970-10-25
Abstract
No abstract record available.
Inventors
- 👤 Watkins Thomas Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:56
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/02; H03L7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2377327A
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US2474278A
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US2424833A
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US2564005A
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US2640156A
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US2594263A
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US2510095A
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US2558100A
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US2631269A
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US2560365A
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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) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |