Patent US2702873A successfully refreshed from Google Patents.
US2702873A
Expired / Lapsed
US
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Screen structure for color television cathode-ray tubes
Assignee: Chromatic Television Laboratories Inc
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Filing: 1952-02-05
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Granted: 1955-02-22
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Expires: 1972-02-05
Abstract
No abstract record available.
Inventors
- 👤 Ernest O Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:05
CPC Classifications
H; 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)
US2481839A
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US2461515A
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US2529485A
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US2446249A
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US2446791A
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US2532511A
Cited
US2446440A
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US2577368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-21 | 1958-08-23 | 1959-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-21 | 1962-08-23 | 1963-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-21 | 1966-08-23 | 1967-02-22 | $7700.00 | Window Closed / Lapsed |