US2964669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling wave tube
Assignee: RCA Corp
•
Filing: 1955-08-25
•
Granted: 1960-12-13
•
Expires: 1975-08-25
Abstract
No abstract record available.
Inventors
- 👤 Bengt N Enander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:49
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2636948A
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US2644930A
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US2645758A
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US2849642A
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US2777906A
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US2850701A
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US2867745A
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US2863086A
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US2860278A
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US2812470A
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US2815466A
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US2870367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |