Patent US3334263A successfully refreshed from Google Patents.
US3334263A
Expired / Lapsed
US
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High frequency electron discharge device having a grooved cathode and electrodes therefor
Assignee: General Electric Co
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Filing: 1964-11-12
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Granted: 1967-08-01
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Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 James E Beggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:27
CPC Classifications
H; H01; H01J; H01J21/00; H01J21/36; H01J19/00; H01J19/28; H01J19/32; H01J19/36; H01J19/38; H01J19/42; H01J21/02; H01J21/06; H01J21/10; H01J2893/00; H01J2893/0001; H01J2893/0002; H01J2893/0005; H01J2893/0012; H01J2893/0015; H01J2893/0019; H01J2893/0022; H01J2893/0024; H01J2893/0027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A HIGH POWER OUTPUT ELECTRON DISCHARGE DEVICE FOR USE AT HIGH FREQUENCIES COMPRISING AN ANODE ELECTRODE, A CATHODE ELECTRODE PROVIDED WITH RECESSES EXTENDING BELOW ITS SURFACE, A GRID STRUCTURE INCLUDING GRID CONDUCTORS CLOSELY SPACED TO SAID CATHODE BETWEEN SAID ANODE AND CATHODE, AND CONDUCTIVE SUPPORT MEMBERS JOINED TO SAID GRID CONDUCTORS HAVING A GREATER THICKNESS IN THE ANODECATHODE DIRECTION THAN SAID GRID CONDUCTORS, WHEREIN SAID
Claim 2
Dependent Claim
65 words
A HIGH POWER OUTPUT ELECTRON DISCHARGE DEVICE FOR USE AT HIGH FREQUENCIES COMPRISING AN ANODE ELECTRODE, A CATHODE ELECTRODE PROVIDED WITH RECESSES EXTENDING BELOW ITS SURFACE, A GRID STRUCTURE INCLUDING GRID CONDUCTORS CLOSELY SPACED TO SAID CATHODE BETWEEN SAID ANODE AND CATHODE, AND CONDUCTIVE SUPPORT MEMBERS JOINED TO SAID GRID CONDUCTORS HAVING A GREATER THICKNESS IN THE ANODECATHODE DIRECTION THAN SAID GRID CONDUCTORS, WHEREIN SAID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |