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US2631230A
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Circuit for minimizing the effects of noise in television signals
Assignee: Allen B du Mont Laboratories Inc
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Filing: 1949-10-11
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Granted: 1953-03-10
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Expires: 1969-10-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Clee O Marsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:37
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1687061A
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US2178766A
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US2087288A
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US2200036A
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US2304713A
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US2273090A
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US2305842A
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US2356141A
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US2353018A
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US2490025A
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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) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |