Patent US2845373A successfully refreshed from Google Patents.
US2845373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor devices and methods of making same
Assignee: RCA Corp
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Filing: 1954-06-01
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Granted: 1958-07-29
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Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 Nelson Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:59
CPC Classifications
H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
61 words
A SEMI-CONDUCTOR DEVICE COMPRISING A BODY OF SEMI-CONDUCTIVE SILICON AND AN ELECTRODE IN WHICH SAID ELECTRODE CONSISTS ESSENTIALLY OF AN ALLOY OF ABOUT 30% 90% LEAD BY WEIGHT, 10%-70% GOLD BY WEIGHT, AND 1/2%-10% BY WEIGHT OF A DONOR IMPURITY SELECTED FROM THE GROUP CONSISTING OF ARSENIC, PHOSPHORUS, AND ANTIMONY BASED ON THE TOTAL WEIGHT OF THE CONBINED LEAD AND GOLD.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |