Patent US2895071A successfully refreshed from Google Patents.
US2895071A
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Traveling wave tube
Assignee: AT&T Inc
•
Filing: 1952-12-23
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Granted: 1959-07-14
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Expires: 1972-12-23
Abstract
No abstract record available.
Inventors
- 👤 Kompfner Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:50
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2566087A
Cited
US2643353A
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US2708236A
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US2622158A
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US2768322A
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US2683256A
Cited
US2702370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-13 | 1963-01-12 | 1963-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-13 | 1967-01-12 | 1967-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-13 | 1971-01-12 | 1971-07-14 | $7700.00 | Window Closed / Lapsed |