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US3054017A
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US
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Electron discharge devices
Assignee: General Electric Co
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Filing: 1957-05-06
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Granted: 1962-09-11
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Expires: 1977-05-06
Abstract
No abstract record available.
Inventors
- 👤 John L Putz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:40
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/26; H01J23/27
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735033A
Cited
US2789247A
Cited
GB668017A
Cited
US2821652A
Cited
FR1119661A
Cited
US2853644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |