US2992356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling wave amplifier tube
Assignee: RCA Corp
•
Filing: 1956-07-31
•
Granted: 1961-07-11
•
Expires: 1976-07-31
Abstract
No abstract record available.
Inventors
- 👤 Fritz E Paschke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:58
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/42; H01J25/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2542797A
Cited
US2687777A
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US2694159A
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GB691900A
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US2683238A
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US2752523A
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US2770781A
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US2704829A
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US2774005A
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US2810854A
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US2812467A
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US2888598A
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US2858472A
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US2849643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |