US2888595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Travelling wave delay tubes of the magnetron type
Assignee: Thales SA
•
Filing: 1952-03-11
•
Granted: 1959-05-26
•
Expires: 1972-03-11
Abstract
No abstract record available.
Inventors
- 👤 Warnecke Robert
- 👤 Guenard Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:03
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)
US2735958A
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US2655616A
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US2566087A
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US2687777A
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US2609522A
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US2623121A
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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) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |