US2632045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical color filter
Assignee: RCA Corp
•
Filing: 1948-08-31
•
Granted: 1953-03-17
•
Expires: 1968-08-31
Abstract
No abstract record available.
Inventors
- 👤 George C Sziklai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:09
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/22; G02B5/24; G02F; G02F1/00; G02F1/01; G02F1/17; G02F1/176
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1505656A
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US1739478A
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GB328017A
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US2109540A
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US1955923A
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GB473061A
Cited
US2128228A
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US2350892A
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US2389979A
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US2493200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |