Patent US2845479A successfully refreshed from Google Patents.
US2845479A
Expired / Lapsed
US
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Television gamma control apparatus
Assignee: CBS Broadcasting Inc
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Filing: 1954-09-23
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Granted: 1958-07-29
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Expires: 1974-09-23
Abstract
No abstract record available.
Inventors
- 👤 Goldberg Abraham
- 👤 Schelp Chester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:15
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/20; H04N9/00; H04N9/64; H04N9/68; H04N9/69
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2545957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |