US2846340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices and method of making same
Assignee: RCA Corp
•
Filing: 1956-06-18
•
Granted: 1958-08-05
•
Expires: 1976-06-18
Abstract
No abstract record available.
Inventors
- 👤 Dietrich A Jenny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:20
CPC Classifications
H; H10; H10P; H10P95/00; H10D; H10D99/00; H10P10/00; H10P10/12; H10P50/00; H10P50/60; H10P50/64; H10P50/642; H10P50/646; H10P50/69; H10P50/691
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A TRANSISTOR COMPRISING A SUBSTRATE OF N-TYPE GALLIUM ARSENIDE AS COLLECTOR, A BASE REGION OF GALLIUM ARSENIDE CONTAINING CADMIUM SO AS TO BE P-TYPE, AND AN EMITTER CONSISTING OF A CADMIUM ARSENIDE LAYER ON SAID BASE REGION.
Claim 2
Dependent Claim
37 words
A TRANSISTOR COMPRISING A SUBSTRATE OF N-TYPE GALLIUM ARSENIDE AS COLLECTOR, A BASE REGION OF GALLIUM ARSENIDE CONTAINING CADMIUM SO AS TO BE P-TYPE, AND AN EMITTER CONSISTING OF A CADMIUM ARSENIDE LAYER ON SAID BASE REGION.
References Cited (Backward Citations)
GB707008A
Cited
US2759861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |