US2809165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor materials
Assignee: RCA Corp
•
Filing: 1956-03-15
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Granted: 1957-10-08
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Expires: 1976-03-15
Abstract
No abstract record available.
Inventors
- 👤 Dietrich A Jenny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:41
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/80; H10D62/83; H10D62/834; C; C30; C30B; C30B13/00; C30B13/08; C30B13/10; C30B15/00; C30B15/02; C30B15/04; Y; Y10; Y10S; Y10S252/00; Y10S252/95; Y10S420/00; Y10S420/903; Y10S438/00; Y10S438/914; Y10S438/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
AN N-TYPE SEMICONDUCTIVE MATERIAL CONSISTING ESSENTIALLY OF AN ELEMENTT SELECTED FROM THE CLASS CONSISTING OF GERMANIUM AND SILICON AND HAVING AN N-TYPE CONDUCTIVITY DETERMINING IMPURITY MATERIAL SELECTED FROM THE CLASS CONSISTING OF SULFUR, SELENIUM, AND TELLURIUM, DISPERSED THROUGHTOUT ITS MASS, THE CONCENTRATION OF SAID IMPURITY MATERIAL IN SAID SEMICONDUCTIVE MATERIAL BEING LESS THAN 10-3.
Claim 2
Dependent Claim
54 words
AN N-TYPE SEMICONDUCTIVE MATERIAL CONSISTING ESSENTIALLY OF AN ELEMENTT SELECTED FROM THE CLASS CONSISTING OF GERMANIUM AND SILICON AND HAVING AN N-TYPE CONDUCTIVITY DETERMINING IMPURITY MATERIAL SELECTED FROM THE CLASS CONSISTING OF SULFUR, SELENIUM, AND TELLURIUM, DISPERSED THROUGHTOUT ITS MASS, THE CONCENTRATION OF SAID IMPURITY MATERIAL IN SAID SEMICONDUCTIVE MATERIAL BEING LESS THAN 10-3.
References Cited (Backward Citations)
US2691577A
Cited
US2739088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |