Patent US2843772A successfully refreshed from Google Patents.
US2843772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube and target
Assignee: RCA Corp
•
Filing: 1953-03-25
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Granted: 1958-07-15
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Expires: 1973-03-25
Abstract
No abstract record available.
Inventors
- 👤 Paul K Weimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:48
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H04; H04N; H04N23/00; H04N23/10; H04N23/12; H01J29/36; H01J29/39; H01J29/45
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2281474A
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US2416056A
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US2519545A
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US2446249A
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US2446440A
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US2630542A
Cited
US2700323A
Cited
US2577368A
Cited
US2552185A
Cited
US2659026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |