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Patent US2881348A successfully refreshed from Google Patents.
US2881348A
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Delay line for traveling wave tubes
Assignee: Thales SA
•
Filing: 1953-12-11
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Granted: 1959-04-07
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Expires: 1973-12-11
Abstract
No abstract record available.
Inventors
- 👤 Palluel Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:39
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/20; H; H01; H01J; H01J23/00; H01J23/16; H01J23/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2617968A
Cited
GB691900A
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US2708236A
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US2622158A
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US2770780A
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US2730678A
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US2746036A
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US2745984A
Cited
US2683256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |