US3146204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of ii-vi semiconducting compounds by solvent extraction
Assignee: General Electric Co
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Filing: 1963-04-15
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Granted: 1964-08-25
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Aven Manuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:46
CPC Classifications
C; C30; C30B; C30B31/00; C30B31/04; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
THE PROCESS OF PURIFYING A II-VI COMPOUND SEMICONDUCTIVE MATERIAL CONSTITUTED OF ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF ZINC AND CADMIUM AND ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF SELENIUM, SULFUR AND TELLURIUM, WHICH PROCESS COMPRISES: HEATING A SOLID BODY OF SAID MATERIAL IN AN INERT ATMOSPHERE IN CONTACT WITH THE LIQUID PHASE OF ITS GROUP II CONSTITUENT.
Claim 2
Dependent Claim
60 words
THE PROCESS OF PURIFYING A II-VI COMPOUND SEMICONDUCTIVE MATERIAL CONSTITUTED OF ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF ZINC AND CADMIUM AND ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF SELENIUM, SULFUR AND TELLURIUM, WHICH PROCESS COMPRISES: HEATING A SOLID BODY OF SAID MATERIAL IN AN INERT ATMOSPHERE IN CONTACT WITH THE LIQUID PHASE OF ITS GROUP II CONSTITUENT.
References Cited (Backward Citations)
US3033791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |