US3214629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid-state electron source
Assignee: General Electric Co
•
Filing: 1963-08-05
•
Granted: 1965-10-26
•
Expires: 1983-08-05
Abstract
No abstract record available.
Inventors
- 👤 Apker Le Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:34
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/30; H01J1/308; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A SOLID-STATE ELECTRON SOURCE COMPRISIN: AN EMISSIVE LAYER CONSISTING ESSENTIALLY OF CS3SB SEMICONDUCTIVE MATERIAL; A SECOND LAYER CONSISTING ESSENTIALLY OF N-TYPE SEMICONDUCTIVE MATERIAL, SAID SECOND LAYER BEING SEPARATED FROM SAID EMISSIVE LAYER BY AN INSULATING MATERIAL HAVING A THICKNESS IN THE ORDER OF AN INSULATING MATERIAL HAVING PATH OF AN ELECTRON IN SAID INSULATING MATERIAL; AND MEANS FOR PROVIDING ELECTRIC CIRCUIT CONNECTIONS TO SAID EMISSIVE AND SECOND LAYERS.
Claim 2
Dependent Claim
68 words
A SOLID-STATE ELECTRON SOURCE COMPRISIN: AN EMISSIVE LAYER CONSISTING ESSENTIALLY OF CS3SB SEMICONDUCTIVE MATERIAL; A SECOND LAYER CONSISTING ESSENTIALLY OF N-TYPE SEMICONDUCTIVE MATERIAL, SAID SECOND LAYER BEING SEPARATED FROM SAID EMISSIVE LAYER BY AN INSULATING MATERIAL HAVING A THICKNESS IN THE ORDER OF AN INSULATING MATERIAL HAVING PATH OF AN ELECTRON IN SAID INSULATING MATERIAL; AND MEANS FOR PROVIDING ELECTRIC CIRCUIT CONNECTIONS TO SAID EMISSIVE AND SECOND LAYERS.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |