Patent US2780668A successfully refreshed from Google Patents.
US2780668A
Expired / Lapsed
US
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Synchronizing system for color television
Assignee: Westinghouse Electric Corp
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Filing: 1952-10-21
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Granted: 1957-02-05
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Expires: 1972-10-21
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Farr
- 👤 Jr Charles W Baugh
- 👤 Charles B Heffron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:05
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2317989A
Cited
US2351759A
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US2428946A
Cited
US2509730A
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US2645678A
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US2635142A
Cited
US2644032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |