US3176164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High vacuum thermionic converter
Assignee: General Electric Co
•
Filing: 1958-11-03
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Granted: 1965-03-30
•
Expires: 1978-11-03
Abstract
No abstract record available.
Inventors
- 👤 James E Beggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:12
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/30; H01J45/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
AN APPARATUS COMPRISING AN ELECTRON EMISSIVE CATHODE ELECTRODE AND AN ELECTRON COLLECTING ANODE ELECTRODE CLOSELY SPACED TO SAID CATHODE ELECTRODE, MEANS FOR MAINAINING THE SPACING BETWEEN SAID ELECTRODES COMPRISING A PLURALITY OF PILLARS SECURED AT ONE END TO SAID CATHODE ELECTRODE AND SECURED AT THE OTHER END TO MEANS RIGID WITH SAID ANODE, SAID PILLARS BEING INSULATED FROM ONE OF SAID ELECTRODES.
Claim 2
Independent Claim
62 words
AN APPARATUS COMPRISING AN ELECTRON EMISSIVE CATHODE ELECTRODE AND AN ELECTRON COLLECTING ANODE ELECTRODE CLOSELY SPACED TO SAID CATHODE ELECTRODE, MEANS FOR MAINAINING THE SPACING BETWEEN SAID ELECTRODES COMPRISING A PLURALITY OF PILLARS SECURED AT ONE END TO SAID CATHODE ELECTRODE AND SECURED AT THE OTHER END TO MEANS RIGID WITH SAID ANODE, SAID PILLARS BEING INSULATED FROM ONE OF SAID ELECTRODES.
References Cited (Backward Citations)
US1509515A
Cited
US2437576A
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US2887606A
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US2759112A
Cited
US2863074A
Cited
US2916649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |