Patent US3384783A successfully refreshed from Google Patents.
US3384783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mode suppression in coaxial magnetrons having diverse size anode resonator
Assignee: AT&T Inc
•
Filing: 1965-12-16
•
Granted: 1968-05-21
•
Expires: 1985-12-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Hilding M Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:14
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/54; H01J25/55; H01J23/00; H01J23/16; H01J23/18; H01J23/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN A COAXIAL CAVITY MAGNETRON OF THE TYPE HAVING A SUBSTANTIALLY CYLINDRICAL CATHODE, A CYLINDRICAL ANODE WALL SURROUNDING THE CATHODE, AN OUTER ANNULAR RESONATOR SURROUNDING THE CATHODE, A PLURALITY OF ANODE VANES EXTENDING FROM THE ANODE WALL TOWARD THE CATHODE, AND A PLURALITY OF SLOTS IN THE ANODE WALL FOR COUPLING ENERGY TO THE OUTER ANNULAR RESONATOR, THE IMPROVEMENT COMPRISING: ANODE RESONATORS DEFINED BETWEEN ADJACENT ANODE VANES WHICH ARE ALTERNATELY SMALL AND LARGE, WHEREBY THE OSCILLATORY MODES OF THE ANODE RESONATORS ARE SEPARATED INTO A LOWER FREQUENCY SET AND A HIGHER FREQUENCY SET;
Claim 2
Dependent Claim
93 words
IN A COAXIAL CAVITY MAGNETRON OF THE TYPE HAVING A SUBSTANTIALLY CYLINDRICAL CATHODE, A CYLINDRICAL ANODE WALL SURROUNDING THE CATHODE, AN OUTER ANNULAR RESONATOR SURROUNDING THE CATHODE, A PLURALITY OF ANODE VANES EXTENDING FROM THE ANODE WALL TOWARD THE CATHODE, AND A PLURALITY OF SLOTS IN THE ANODE WALL FOR COUPLING ENERGY TO THE OUTER ANNULAR RESONATOR, THE IMPROVEMENT COMPRISING: ANODE RESONATORS DEFINED BETWEEN ADJACENT ANODE VANES WHICH ARE ALTERNATELY SMALL AND LARGE, WHEREBY THE OSCILLATORY MODES OF THE ANODE RESONATORS ARE SEPARATED INTO A LOWER FREQUENCY SET AND A HIGHER FREQUENCY SET;
References Cited (Backward Citations)
US2419172A
Cited
US3176188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |