US3308330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold emission electron discharge device
Assignee: Individual
•
Filing: 1963-03-13
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Granted: 1967-03-07
•
Expires: 1983-03-13
Abstract
No abstract record available.
Inventors
- 👤 Charles Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:54
CPC Classifications
H; H01; H01J; H01J21/00; H01J21/02; H01J1/00; H01J1/02; H01J1/30; H01J1/304
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A TRIODE, COMPRISING: A COLD EMISSION CATHODE PROVIDING AN UNMODULATED STREAM OF ELECTRONS; A TARGET HAVING INDUCED CONDUCTIVITY PROPERTIES AND FACING SAID CATHODE WITH ONE FACE THEREOF RECEIVING SAID UNMODULATED STREAM OF ELECTRONS; A FIRST METALLIZATION LOCATED ON THE OTHER FACE OF SAID TARGET; AND A SECOND METALLIZATION LOCATED ON SAID OTHER FACE AND GALVANICALLY SEPARATED FROM SAID FIRST METALLIZATION,
Claim 2
Dependent Claim
60 words
A TRIODE, COMPRISING: A COLD EMISSION CATHODE PROVIDING AN UNMODULATED STREAM OF ELECTRONS; A TARGET HAVING INDUCED CONDUCTIVITY PROPERTIES AND FACING SAID CATHODE WITH ONE FACE THEREOF RECEIVING SAID UNMODULATED STREAM OF ELECTRONS; A FIRST METALLIZATION LOCATED ON THE OTHER FACE OF SAID TARGET; AND A SECOND METALLIZATION LOCATED ON SAID OTHER FACE AND GALVANICALLY SEPARATED FROM SAID FIRST METALLIZATION,
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |