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Patent US2434962A successfully refreshed from Google Patents.
US2434962A
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Electron discharge device of the cavity resonator type
Assignee: International Standard Electric Corp
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Filing: 1943-06-03
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Granted: 1948-01-27
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Expires: 1963-06-03
Abstract
No abstract record available.
Inventors
- 👤 Rostas Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:48
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/02; H01J25/22; H01J25/30; H01J25/10; H01J25/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2128232A
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US2128233A
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US2269456A
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US2287845A
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US2259690A
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US2306860A
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US2368031A
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US2298949A
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US2289846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-26 | 1951-07-28 | 1952-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-26 | 1955-07-28 | 1956-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-26 | 1959-07-28 | 1960-01-27 | $7700.00 | Window Closed / Lapsed |