Patent US2869251A successfully refreshed from Google Patents.
US2869251A
Expired / Lapsed
US
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Method and apparatus for recording and reproducing a video display and its audio counterpart
Assignee: Individual
•
Filing: 1954-07-19
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Granted: 1959-01-20
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Expires: 1974-07-19
Abstract
No abstract record available.
Inventors
- 👤 Howard E Chubb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:46
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S7/4004; G01S7/4021; G09; G09B; G09B9/00; G09B9/56; H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2517591A
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US2459679A
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US2578939A
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US2674812A
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US2679035A
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US2775828A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |