US2918523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color correction system
Assignee: RCA Corp
•
Filing: 1956-10-30
•
Granted: 1959-12-22
•
Expires: 1976-10-30
Abstract
No abstract record available.
Inventors
- 👤 Shapiro Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:02
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6016; H04N1/6022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2231668A
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US2434561A
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US2592291A
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US2691696A
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US2727940A
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US2721892A
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US2748190A
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US2740832A
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US2807660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |