US2609440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical recording in colors
Assignee: RCA Corp
•
Filing: 1947-10-30
•
Granted: 1952-09-02
•
Expires: 1967-10-30
Abstract
No abstract record available.
Inventors
- 👤 Alfred N Goldsmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:10
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1627701A
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US1941001A
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US1841452A
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US2100204A
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US2278940A
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US2227109A
Cited
US2213876A
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US2413706A
Cited
US2431360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |