US2776920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Germanium-zinc alloy semi-conductors
Assignee: General Electric Co
•
Filing: 1952-11-05
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Granted: 1957-01-08
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Expires: 1972-11-05
Abstract
No abstract record available.
Inventors
- 👤 Jr William C Dunlap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:39
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/80; H10D62/83; H10D62/834; H10D62/60; H10P; H10P95/00; H10W; H10W72/00; H10W76/00; H10W76/10; H10W76/17; H10W76/60; Y; Y10; Y10S; Y10S420/00; Y10S420/903; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A SEMICONDUCTOR MEMBER CONSISTING OF P-TYE GERMANIUM IMPREGNATED WITH FROM 0.00001% TO 0.001% BY WEIGHT OF ZINC.
Claim 2
Dependent Claim
17 words
A SEMICONDUCTOR MEMBER CONSISTING OF P-TYE GERMANIUM IMPREGNATED WITH FROM 0.00001% TO 0.001% BY WEIGHT OF ZINC.
References Cited (Backward Citations)
US2588253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |