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US3472962A
Expired / Lapsed
US
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Synchronization system for television signals with auxiliary information transmitted during the vertical blanking interval
Assignee: RCA Corp
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Filing: 1966-09-27
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Granted: 1969-10-14
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Expires: 1986-09-27
Abstract
No abstract record available.
Inventors
- 👤 Robert F Sanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:01
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/08; H04N7/087; H03; H03K; H03K5/00; H04N5/00; H04N5/04; H04N5/08; H04N5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2874213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |