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US2896169A
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Automatic frequency control system with a two-speed frequency sweep
Assignee: General Electric Co
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Filing: 1955-10-24
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Granted: 1959-07-21
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Expires: 1975-10-24
Abstract
No abstract record available.
Inventors
- 👤 Howell Edward Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:59
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03L7/08; H03L7/10; H03L7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2434293A
Cited
US2434294A
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US2492018A
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US2705756A
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US2541454A
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US2725476A
Cited
US2704329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |