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Patent US3418155A successfully refreshed from Google Patents.
US3418155A
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US
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Electron discharge control
Assignee: Energy Sciences Inc
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Filing: 1965-09-30
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Granted: 1968-12-24
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Expires: 1985-09-30
Abstract
No abstract record available.
Inventors
- 👤 Alex D Colvin
- 👤 Allen H Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:58
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/301; G; G21; G21K; G21K5/00; G21K5/10; H01J33/00; H01J33/02; H01J33/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |