US2921226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for color purity correction in color television receivers
Assignee: Lanteris Space LLC
•
Filing: 1956-05-24
•
Granted: 1960-01-12
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Expires: 1976-05-24
Abstract
No abstract record available.
Inventors
- 👤 Henry S Vasilevskis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:54
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; H01J29/702; H01J29/703; H01J29/003; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/29; H01J2229/00; H01J2229/0007; H01J2229/003; H01J2229/56; H01J2229/563; H01J2229/5637
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2258643A
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US2459732A
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US2643352A
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US2513221A
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US2663757A
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US2675501A
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US2719249A
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US2816244A
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US2825835A
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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 |