Patent US3114070A successfully refreshed from Google Patents.
US3114070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron emitters
Assignee: ASS ELECT IND MANCHESTER Ltd
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Filing: 1958-12-12
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Granted: 1963-12-10
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Expires: 1978-12-12
Abstract
No abstract record available.
Inventors
- 👤 Stratton Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:25
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/30; H01J1/308
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
AN ELECTRON EMITTER COMPRISING A BODY OF SEMICONDUCTOR MATERIAL, MEANS PROVIDING AN EVACUATED SPACE WITH A SURFACE OF SAID BODY BORDERING THEREON, MEANS SUPPLYING A PULSED HIGH ELECTRICAL VOLTAGE ACROSS SAID SEMI-CONDUCTOR SURFACE LESS THAN THE DIELECTRIC BREAKDOWN FOR THE SEMI-CONDUCTOR MATERIAL AND BELOW AVALANCHE BREAKDOWN OF THE SEMI-CONDUCTOR FOR PRODUCING ELECTRON EMISSION INTO THE EVACUATED SPACE, AND AN ANODE IN SAID EVACUATED SPACE FOR RECEIVING THE ELECTRONS.
Claim 2
Dependent Claim
68 words
AN ELECTRON EMITTER COMPRISING A BODY OF SEMICONDUCTOR MATERIAL, MEANS PROVIDING AN EVACUATED SPACE WITH A SURFACE OF SAID BODY BORDERING THEREON, MEANS SUPPLYING A PULSED HIGH ELECTRICAL VOLTAGE ACROSS SAID SEMI-CONDUCTOR SURFACE LESS THAN THE DIELECTRIC BREAKDOWN FOR THE SEMI-CONDUCTOR MATERIAL AND BELOW AVALANCHE BREAKDOWN OF THE SEMI-CONDUCTOR FOR PRODUCING ELECTRON EMISSION INTO THE EVACUATED SPACE, AND AN ANODE IN SAID EVACUATED SPACE FOR RECEIVING THE ELECTRONS.
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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |