US3345528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetron injection gun having a vaned negative control grid
Assignee: Unisys Corp
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Filing: 1966-11-14
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Granted: 1967-10-03
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Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Furnie S Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:16
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/06; H01J23/075; H01J19/00; H01J19/28; H01J19/38; H01J23/04; H01J23/05; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0015; H01J2893/0018
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A MAGNETRON INJECTION GUN COMPRISING A HOLLOW CONICAL ANODE, A CONCIAL CATHODE, A HOLLOW CONICAL FOCUS ELECTRODE, SAID ELECTRODE SURROUNDING ONE END OF SAID CATHODE AND SAID ANODE SURROUNDING ALL OF SAID CATHODE, SAID ANODE, CATHODE AND ELECTRODE BEING COAXIAL, AND A CONTROL GRID STRUCTURE ATTACHED AT ONE END TO SAID ELECTRODE AND EXTENDING AXIALLY ALONG SAID CATHODE TO FORM A CAGE ABOUT SAID CATHODE, SAID STRUCTURE COMPRISING A PLURALITY OF CONDUCTIVE VANES, EACH SAID VANE EXTENDING AXIALLY ALONG SAID CATHODE, THE NARROW EDGE OF EACH SAID VANE FACING SAID CATHODE.
Claim 2
Dependent Claim
91 words
A MAGNETRON INJECTION GUN COMPRISING A HOLLOW CONICAL ANODE, A CONCIAL CATHODE, A HOLLOW CONICAL FOCUS ELECTRODE, SAID ELECTRODE SURROUNDING ONE END OF SAID CATHODE AND SAID ANODE SURROUNDING ALL OF SAID CATHODE, SAID ANODE, CATHODE AND ELECTRODE BEING COAXIAL, AND A CONTROL GRID STRUCTURE ATTACHED AT ONE END TO SAID ELECTRODE AND EXTENDING AXIALLY ALONG SAID CATHODE TO FORM A CAGE ABOUT SAID CATHODE, SAID STRUCTURE COMPRISING A PLURALITY OF CONDUCTIVE VANES, EACH SAID VANE EXTENDING AXIALLY ALONG SAID CATHODE, THE NARROW EDGE OF EACH SAID VANE FACING SAID CATHODE.
References Cited (Backward Citations)
US2828437A
Cited
US3258626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |