US2632050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keyed automatic frequency control system for television receivers
Assignee: Avco Manufacturing Corp
•
Filing: 1950-04-03
•
Granted: 1953-03-17
•
Expires: 1970-04-03
Abstract
No abstract record available.
Inventors
- 👤 Norman W Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:21
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/04; H04N5/12; H04N5/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB517181A
Cited
FR845897A
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FR851899A
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GB529790A
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US2312982A
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US2269687A
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US2381238A
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US2458156A
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US2457140A
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US2480582A
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US2519911A
Cited
US2593011A
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US2559038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |