US2861229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor devices and methods of making same
Assignee: RCA Corp
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Filing: 1953-06-19
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Granted: 1958-11-18
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Expires: 1973-06-19
Abstract
No abstract record available.
Inventors
- 👤 Jacques I Pankove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:21
CPC Classifications
H; H10; H10W; H10W74/00; H10D; H10D99/00; H10P; H10P95/00; H10P95/50; H10W74/01; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49101
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
A SEMI-CONDUCTOR DEVICE COMPRISING A SEMI-CONDUCTOR BODY HAVING A MAJOR RELATIVELY HIGH RESISTIVITY REGION OF ONE CONDUCTIVITY TYPE, AN ADJACENT RELATIVELY LOW RESISTIVITY REGION OF OPPOSITE CONDUCTIVITY TYPE, A SECOND RELATIVELY LOW RESISTIVITY REGION OF SAID ONE CONDUCTIVITY TYPE SPACED FROM SAID MAJOR REGION, A BODY OF AN IMPURITY MATERIAL OF SAID ONE CONDUCTIVITY TYPE FUSED TO SAID SE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |