Patent US2522836A successfully refreshed from Google Patents.
US2522836A
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Electron discharge device and associated cavity resonator circuit
Assignee: RCA Corp
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Filing: 1944-10-21
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Granted: 1950-09-19
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Expires: 1964-10-21
Abstract
No abstract record available.
Inventors
- 👤 Leon S Nergaard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:27
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/78; H01J19/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2153728A
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US2228939A
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US2287845A
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US2267128A
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US2314794A
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US2284405A
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US2333295A
Cited
US2423819A
Cited
US2419578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |