US2526054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode assembly for very highfrequency electron discharge devices
Assignee: MO Valve Co Ltd
•
Filing: 1946-11-07
•
Granted: 1950-10-17
•
Expires: 1966-11-07
Abstract
No abstract record available.
Inventors
- 👤 Geoffrey W Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:34
CPC Classifications
H; H01; H01J; H01J21/00; H01J21/02; H01J21/06; H01J21/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1969496A
Cited
US1889612A
Cited
US2159255A
Cited
US2244752A
Cited
US2256297A
Cited
US2416298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |