US2798946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic frequency control system which stops hunting when in tune
Assignee: RCA Corp
•
Filing: 1953-11-30
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Granted: 1957-07-09
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Expires: 1973-11-30
Abstract
No abstract record available.
Inventors
- 👤 Richard W Howery
- 👤 Allen M Sheeder
- 👤 Jr Stiles C Stribling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:32
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; H; H03; H03J; H03J7/00; H03J7/02; H03J7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2206695A
Cited
US2377327A
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US2434293A
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US2434294A
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US2425013A
Cited
GB613212A
Cited
US2705756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |