US2657331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic color television
Assignee: International Standard Electric Corp
•
Filing: 1948-06-05
•
Granted: 1953-10-27
•
Expires: 1968-06-05
Abstract
No abstract record available.
Inventors
- 👤 Louis W Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:11
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2310863A
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US2312792A
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US2416056A
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US2461515A
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US2477008A
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US2446249A
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US2446791A
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US2458291A
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US2457911A
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US2446440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |