Patent US2742591A successfully refreshed from Google Patents.
US2742591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television sweep circuit
Assignee: Individual
•
Filing: 1952-07-18
•
Granted: 1956-04-17
•
Expires: 1972-07-18
Abstract
No abstract record available.
Inventors
- 👤 Samuel A Procter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:09
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)
US2370426A
Cited
US2553165A
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US2610298A
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US2623177A
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US2492090A
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US2654855A
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US2652489A
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US2564471A
Cited
US2577795A
Cited
US2686276A
Cited
US2685033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |