US2822299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a cadmium-telluride semi-conductive device
Assignee: US Philips Corp
•
Filing: 1955-11-28
•
Granted: 1958-02-04
•
Expires: 1975-11-28
Abstract
No abstract record available.
Inventors
- 👤 Nobel Dirk De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:06
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A METHOD OF PROVIDING A TELLURIUM LAYER ON A CADMIUM-TELLURIDE SEMI-CONDUCTIVE BODY, WHICH COMPRISES SUBJECTING A SURFACE PORTION OF SAID BODY TO A PERFERENTIAL OXIDIZING TREATMENT TO CONVERT THE MATERIAL OF SAID SURFACE PORTION INTO TELLURIUM.
Claim 2
Independent Claim
36 words
A METHOD OF PROVIDING A TELLURIUM LAYER ON A CADMIUM-TELLURIDE SEMI-CONDUCTIVE BODY, WHICH COMPRISES SUBJECTING A SURFACE PORTION OF SAID BODY TO A PERFERENTIAL OXIDIZING TREATMENT TO CONVERT THE MATERIAL OF SAID SURFACE PORTION INTO TELLURIUM.
References Cited (Backward Citations)
US1751361A
Cited
US2408116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |