Patent US2115959A successfully refreshed from Google Patents.
Patent US2742383A successfully refreshed from Google Patents.
US2742383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Germanium junction-type semiconductor devices
Assignee: Raytheon Co
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Filing: 1952-08-09
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Granted: 1956-04-17
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Expires: 1972-08-09
Abstract
No abstract record available.
Inventors
- 👤 Sanford H Barnes
- 👤 Jr Justice N Carman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:46
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; H10D99/00; H10F; H10F30/00; H10F30/20; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
IN A SEMICONDUCTOR TRANSLATING DEVICE, THE COMBINATION COMPRISING: A GERMANIUM SPECIMEN HAVING AN INDENTATION THEREIN, SAID SPECIMEN HAVING AN N-TYPE REGION IMMEDIATELY ADJACENT SAID INDENTATION AND A P-TYPE REGION ADJACENT AND N-TYPE REGION; AND A METALLIC BUTTON FILLING SAID INDENTATION, SAID BUTTON CONSISTING ESSENTIALLY OF ARSENIC, GERMANIUM, AND AT LEAST ONE ELEMENT IN WHICH GERMANIUM IS READILY SOLUBLE.
Claim 2
Dependent Claim
58 words
IN A SEMICONDUCTOR TRANSLATING DEVICE, THE COMBINATION COMPRISING: A GERMANIUM SPECIMEN HAVING AN INDENTATION THEREIN, SAID SPECIMEN HAVING AN N-TYPE REGION IMMEDIATELY ADJACENT SAID INDENTATION AND A P-TYPE REGION ADJACENT AND N-TYPE REGION; AND A METALLIC BUTTON FILLING SAID INDENTATION, SAID BUTTON CONSISTING ESSENTIALLY OF ARSENIC, GERMANIUM, AND AT LEAST ONE ELEMENT IN WHICH GERMANIUM IS READILY SOLUBLE.
References Cited (Backward Citations)
US2569347A
Cited
US2560579A
Cited
US2666814A
Cited
US2672528A
Cited
US2629672A
Cited
US2597028A
Cited
BE506110A
Cited
US2644852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |