US3384776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermionic tube having a novel electrode support arrangement
Assignee: General Electric Co
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Filing: 1965-08-17
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Granted: 1968-05-21
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Expires: 1985-08-17
Abstract
No abstract record available.
Inventors
- 👤 John M Houston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:13
CPC Classifications
H; H01; H01J; H01J45/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A THERMIONIC DEVICE COMPRISING A FIRST ELECTRODE HAVING A FIRST PLANAR SURFACE AND HAVING A REARWARD SUPPORT BASE, A SECOND ELECTRODE FOR OPERATION AT A HIGH TEMPERATURE HAVING A SECOND PLANAR SURFACE IN SPACED RELATION TO SAID FIRST PLANAR SURFACE, AND A SUPPORT FOR SAID SECOND ELECTRODE EXTENDING FROM SAID SUPPORT BASE AND PAST SAID ELECTRODE SURFACES TO SAID SECOND ELECTRODE WHERE IT IS SECURED THERETO BEHIND ITS PLANAR SURFACE, WHEREIN SAID SUPPORT HAS A HEAT INSULATING SECTION COEXTENSIVE WITH AT LEAST A PORTION OF SAID SECOND ELECTRODE, SAID THIN SECTION PROVIDING A TEMPERATURE DROP AWAY FROM SAID SECOND ELECTRODE.
Claim 2
Dependent Claim
100 words
A THERMIONIC DEVICE COMPRISING A FIRST ELECTRODE HAVING A FIRST PLANAR SURFACE AND HAVING A REARWARD SUPPORT BASE, A SECOND ELECTRODE FOR OPERATION AT A HIGH TEMPERATURE HAVING A SECOND PLANAR SURFACE IN SPACED RELATION TO SAID FIRST PLANAR SURFACE, AND A SUPPORT FOR SAID SECOND ELECTRODE EXTENDING FROM SAID SUPPORT BASE AND PAST SAID ELECTRODE SURFACES TO SAID SECOND ELECTRODE WHERE IT IS SECURED THERETO BEHIND ITS PLANAR SURFACE, WHEREIN SAID SUPPORT HAS A HEAT INSULATING SECTION COEXTENSIVE WITH AT LEAST A PORTION OF SAID SECOND ELECTRODE, SAID THIN SECTION PROVIDING A TEMPERATURE DROP AWAY FROM SAID SECOND ELECTRODE.
References Cited (Backward Citations)
US3327156A
Cited
US3351800A
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 |