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US2877293A
Expired / Lapsed
US
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Color-balance control system
Assignee: Hazeltine Research Inc
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Filing: 1954-06-17
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Granted: 1959-03-10
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Expires: 1974-06-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur V Loughren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:58
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/64; H04N9/73; H04N9/12; H04N9/16; H04N9/18; H04N9/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2406760A
Cited
US2389039A
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US2566693A
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US2627547A
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US2660612A
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US2648722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |