Patent US3532811A successfully refreshed from Google Patents.
US3532811A
Expired / Lapsed
US
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Circuit for separating sync signals from a composite video signal
Assignee: Bell and Howell Co
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Filing: 1968-03-29
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Granted: 1970-10-06
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Expires: 1988-03-29
Abstract
No abstract record available.
Inventors
- 👤 Bert H Dann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:58
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/04; H04N5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3006996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |