Patent US2744837A successfully refreshed from Google Patents.
US2744837A
Expired / Lapsed
US
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Photo-conductive targets for cathode ray devices
Assignee: RCA Corp
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Filing: 1951-06-01
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Granted: 1956-05-08
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Expires: 1971-06-01
Abstract
No abstract record available.
Inventors
- 👤 Stanley V Forgue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/233; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2236647A
Cited
US2236172A
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US2167777A
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US2404098A
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US2642367A
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US2574356A
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US2687484A
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US2654852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |