US3015746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron discharge devices employing photo-conductive target electrodes
Assignee: EMI Ltd
•
Filing: 1956-02-06
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Granted: 1962-01-02
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Expires: 1976-02-06
Abstract
No abstract record available.
Inventors
- 👤 Lubszynski Hans Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:57
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J9/00; H01J9/20; H01J9/233; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249988
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2177736A
Cited
US2413606A
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US2452619A
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US2458205A
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US2656287A
Cited
US2614235A
Cited
US2687484A
Cited
US2744837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |