Patent US2815466A successfully refreshed from Google Patents.
US2815466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling wave tube
Assignee: Raytheon Co
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Filing: 1955-04-20
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Granted: 1957-12-03
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Expires: 1975-04-20
Abstract
No abstract record available.
Inventors
- 👤 Sensiper Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:45
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN COMBINATION, IN A TRAVELING-WAVE TUBE, A SLOWWAVE STRUCTURE HAVING A LONGITUDINAL AXIS, AND A FERROMAGNETIC ATTENUATING STURCTURE DISPOSED HELICALLY ABOUT SAID SLOW-WAVE STRUCTURE, SAID ATTENUATING STRUCTURE COMPRISING A PLURALITY OF ELONGATED CERAMIC FERRITE BODIES DISPOSED IN PLANES PERPENDICULAR TO SAID AXIS, AND A PLURALITY OF ELONGATED FERROMAGNETIC BODIES DISPOSED PARALLEL TO SAID AXIS, SAID CERAMIC FERRITE BODIES BEING DISPOSED ALTERNATELY BETWEEN SAID FERROMAGNETIC BODIES, SAID FERROMAGNETIC BODIES HAVING A PERMEABILITY SUBSTANTIALLY GREATER THAN THAT OF SAID CERAMIC FERRITE BODIES.
Claim 2
Dependent Claim
80 words
IN COMBINATION, IN A TRAVELING-WAVE TUBE, A SLOWWAVE STRUCTURE HAVING A LONGITUDINAL AXIS, AND A FERROMAGNETIC ATTENUATING STURCTURE DISPOSED HELICALLY ABOUT SAID SLOW-WAVE STRUCTURE, SAID ATTENUATING STRUCTURE COMPRISING A PLURALITY OF ELONGATED CERAMIC FERRITE BODIES DISPOSED IN PLANES PERPENDICULAR TO SAID AXIS, AND A PLURALITY OF ELONGATED FERROMAGNETIC BODIES DISPOSED PARALLEL TO SAID AXIS, SAID CERAMIC FERRITE BODIES BEING DISPOSED ALTERNATELY BETWEEN SAID FERROMAGNETIC BODIES, SAID FERROMAGNETIC BODIES HAVING A PERMEABILITY SUBSTANTIALLY GREATER THAN THAT OF SAID CERAMIC FERRITE BODIES.
References Cited (Backward Citations)
US2636948A
Cited
US2644930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |