Patent US2653993A successfully refreshed from Google Patents.
US2653993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simultaneous color television optical system
Assignee: RCA Corp
•
Filing: 1948-04-29
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Granted: 1953-09-29
•
Expires: 1968-04-29
Abstract
No abstract record available.
Inventors
- 👤 Alfred C Schroeder
- 👤 George C Sziklai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:06
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; H01J31/56; H04; H04N; H04N23/00; H04N23/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US2422778A
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US2552386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |