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Patent US2728008A successfully refreshed from Google Patents.
US2728008A
Expired / Lapsed
US
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Color-kinescopes, etc.
Assignee: RCA Corp
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Filing: 1953-04-21
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Granted: 1955-12-20
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Expires: 1973-04-21
Abstract
No abstract record available.
Inventors
- 👤 Don G Burnside
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:25
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/06; H01J29/07; H01J2229/00; H01J2229/07; H01J2229/0727; H01J2229/0777; H01J2229/0783
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1601066A
Cited
US1981620A
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US2167128A
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US2630542A
Cited
US2625734A
Cited
US2611099A
Cited
US2619608A
Cited
US2659026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |