Patent US2719936A successfully refreshed from Google Patents.
US2719936A
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US
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Electron tubes of the traveling wave type
Assignee: RCA Corp
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Filing: 1949-09-14
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Granted: 1955-10-04
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Expires: 1969-09-14
Abstract
No abstract record available.
Inventors
- 👤 Rolf W Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:47
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2406370A
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US2300052A
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US2575383A
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US2602148A
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US2578434A
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US2541843A
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US2516944A
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US2652513A
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US2585582A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-03 | 1959-04-04 | 1959-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-03 | 1963-04-04 | 1963-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-03 | 1967-04-04 | 1967-10-04 | $7700.00 | Window Closed / Lapsed |