Patent US2571486A successfully refreshed from Google Patents.
US2858246A
Expired / Lapsed
US
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Silicon single crystal conductor devices
Assignee: AT&T Inc
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Filing: 1957-04-22
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Granted: 1958-10-28
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Expires: 1977-04-22
Abstract
No abstract record available.
Inventors
- 👤 Gerald L Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:57
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J29/451; H01J29/453; H01J29/455; H01J9/00; H01J9/20; H01J9/233; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/051; Y10S148/115
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A SEMICONDUCTOR TRANSLATING ELEMENT FOR AN ELECTRON BEAM DEVICE COMPRISING A BODY OF SINGLE CRYSTAL SILICON OF N-TYPE CONDUCTIVELY HAVING ONE MAJOR SURFACE IN THE (100) PLANE, AND AN ARRAY OF DISCRETE SQUARE REGIONS OF SHALLOW DEPTH AND OF P-TYPE CONDUCTIVITY IN SAID MAJOR SURFACE, SAID SQUARE REGIONS BEING DEFINED BY THE CRYSTALLINE STRUCTURE OF SAID BODY.
Claim 2
Dependent Claim
57 words
A SEMICONDUCTOR TRANSLATING ELEMENT FOR AN ELECTRON BEAM DEVICE COMPRISING A BODY OF SINGLE CRYSTAL SILICON OF N-TYPE CONDUCTIVELY HAVING ONE MAJOR SURFACE IN THE (100) PLANE, AND AN ARRAY OF DISCRETE SQUARE REGIONS OF SHALLOW DEPTH AND OF P-TYPE CONDUCTIVITY IN SAID MAJOR SURFACE, SAID SQUARE REGIONS BEING DEFINED BY THE CRYSTALLINE STRUCTURE OF SAID BODY.
References Cited (Backward Citations)
US2773925A
Cited
US2789068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |