US2921228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color television apparatus
Assignee: TDK Micronas GmbH
•
Filing: 1954-05-18
•
Granted: 1960-01-12
•
Expires: 1974-05-18
Abstract
No abstract record available.
Inventors
- 👤 Philo T Farnsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:15
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/20; H01J31/201; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2252744A
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US2336895A
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US2617876A
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US2577038A
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US2646521A
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US2611099A
Cited
US2619608A
Cited
US2741720A
Cited
US2757301A
Cited
US2803781A
Cited
US2813224A
Cited
US2831918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |