US3091719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave transducer
Assignee: Field Emission Corp
•
Filing: 1959-04-14
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Granted: 1963-05-28
•
Expires: 1979-04-14
Abstract
No abstract record available.
Inventors
- 👤 Walter P Dyke
- 👤 Joseph E Henderson
- 👤 Francis M Charbonnier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:39
CPC Classifications
H; H01; H01J; H01J25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A MICROWAVE TRANSDUCER COMPRISING A RESONATOR APERTURED FOR THE PASSAGE OF AN ELECTRON BEAM THEREACROSS, ELECTRICAL ENERGY INPUT AND OUTPUT MEANS FOR SAID RESONATOR, FIELD EMISSION CATHODE MEANS POSITIONED TO DIRECT ACROSS SAID RESONATOR A BEAM OF ELECTRONS, AND MEANS FOR EFFECTING FIELD MISSION IN THE FORM OF ELECTRON BUNCHES DIRECTLY UPON EMISSION FROM SAID FIELD EMISSION CATHODE AND AT A FREQUENCY IN RESONANCE WITH SAID RESONATOR.
Claim 2
Dependent Claim
67 words
A MICROWAVE TRANSDUCER COMPRISING A RESONATOR APERTURED FOR THE PASSAGE OF AN ELECTRON BEAM THEREACROSS, ELECTRICAL ENERGY INPUT AND OUTPUT MEANS FOR SAID RESONATOR, FIELD EMISSION CATHODE MEANS POSITIONED TO DIRECT ACROSS SAID RESONATOR A BEAM OF ELECTRONS, AND MEANS FOR EFFECTING FIELD MISSION IN THE FORM OF ELECTRON BUNCHES DIRECTLY UPON EMISSION FROM SAID FIELD EMISSION CATHODE AND AT A FREQUENCY IN RESONANCE WITH SAID RESONATOR.
References Cited (Backward Citations)
US2217448A
Cited
US2264541A
Cited
US2446572A
Cited
US2591316A
Cited
US2513933A
Cited
US2641733A
Cited
US2700743A
Cited
US2792524A
Cited
US2916668A
Cited
US2911560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |