US2811474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor devices
Assignee: RCA Corp
•
Filing: 1953-04-22
•
Granted: 1957-10-29
•
Expires: 1973-04-22
Abstract
No abstract record available.
Inventors
- 👤 Lorne D Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:27
CPC Classifications
C; C22; C22F; C22F3/00; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A SEMI-CONDUCTOR DEVICE COMPRISING A BODY OF GERMANIUM, AN ELECTRODE FUSED THERETO AND A P-N RECTIFYING JUNCTION DISPOSED THEREIN ADJACENT SAID ELECTRODE, SAID ELECTRODE COMPRISING AN ALLOY HAVING THE FOLLOWING PROPORTIONS BY WEIGHT:
Claim 2
Dependent Claim
33 words
A SEMI-CONDUCTOR DEVICE COMPRISING A BODY OF GERMANIUM, AN ELECTRODE FUSED THERETO AND A P-N RECTIFYING JUNCTION DISPOSED THEREIN ADJACENT SAID ELECTRODE, SAID ELECTRODE COMPRISING AN ALLOY HAVING THE FOLLOWING PROPORTIONS BY WEIGHT:
References Cited (Backward Citations)
US2742383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |