US2446825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra high frequency electric discharge device
Assignee: General Electric Co
•
Filing: 1942-12-31
•
Granted: 1948-08-10
•
Expires: 1962-12-31
Abstract
No abstract record available.
Inventors
- 👤 Anatole M Gurewitsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:56
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/58; B; B30; B30B; B30B15/00; B30B15/16; B30B15/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1387985A
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US2288812A
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US2247077A
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US2417789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-10 | 1952-02-09 | 1952-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-10 | 1956-02-09 | 1956-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-10 | 1960-02-09 | 1960-08-10 | $7700.00 | Window Closed / Lapsed |