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US2816952A
Expired / Lapsed
US
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Color demodulation
Assignee: RCA Corp
•
Filing: 1953-12-30
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Granted: 1957-12-17
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Expires: 1973-12-30
Abstract
No abstract record available.
Inventors
- 👤 Robert K Lockhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:49
CPC Classifications
H; H04; H04N; H04N11/00; H04N11/06; H04N11/12; H04N11/14; H04N11/146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2635140A
Cited
US2644030A
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US2663756A
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US2666806A
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US2718546A
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US2680147A
Cited
US2725422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |