Patent US2857456A successfully refreshed from Google Patents.
US2857456A
Expired / Lapsed
US
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Color oscillator arrangement for color receiver
Assignee: General Electric Co
•
Filing: 1954-02-16
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Granted: 1958-10-21
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Expires: 1974-02-16
Abstract
No abstract record available.
Inventors
- 👤 John G Humphrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:32
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/44; H04N9/455; H03; H03L; H03L7/00; H03L7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2399421A
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US2428946A
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US2523556A
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US2655556A
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US2594380A
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US2751430A
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US2743369A
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US2714132A
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US2751431A
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US2752420A
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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) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |