US3243267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Growth of single crystals
Assignee: General Electric Co
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Filing: 1964-07-31
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Granted: 1966-03-29
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Expires: 1984-07-31
Abstract
No abstract record available.
Inventors
- 👤 William W Piper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:23
CPC Classifications
C; C30; C30B; C30B23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE METHOD OF GROWING SINGLE CRYSTALS OF A COMPOUND SEMICONDUCTIVE MATERIAL OF THE ZINC-CADMIUM SULFO-SELENIDE GROUP COMPRISING A CATION OF GROUP IIB OF THE PERIODIC TABLE AND AN ANION OF GROUP VIA OF THE PERIODIC TABLE, WHICH METHOD COMPRISES: (A) PLACING A CHARGE OF SAID MATERIAL IN A PARTIALLY CLOSED TUBE; (B) ESTABLISHING A PRESELECTED TEMPERATURE PROFILE ALONG SAID TUBE SUCH THAT THE TEMPERATURE AT A FIRST PORTION OF SAID TUBE IS SUFFICIENTLY HIGH TO VAPORIZE SAID MATERIAL AND THE TEMPERATURE AT A SECOND PORTION OF SAID TUBE IS SUFFICIENTLY LOW AS TO CAUSE CONDENSATION OF SAID VAPORIZED MATERIAL THEREAT;
Claim 2
Independent Claim
100 words
THE METHOD OF GROWING SINGLE CRYSTALS OF A COMPOUND SEMICONDUCTIVE MATERIAL OF THE ZINC-CADMIUM SULFO-SELENIDE GROUP COMPRISING A CATION OF GROUP IIB OF THE PERIODIC TABLE AND AN ANION OF GROUP VIA OF THE PERIODIC TABLE, WHICH METHOD COMPRISES: (A) PLACING A CHARGE OF SAID MATERIAL IN A PARTIALLY CLOSED TUBE; (B) ESTABLISHING A PRESELECTED TEMPERATURE PROFILE ALONG SAID TUBE SUCH THAT THE TEMPERATURE AT A FIRST PORTION OF SAID TUBE IS SUFFICIENTLY HIGH TO VAPORIZE SAID MATERIAL AND THE TEMPERATURE AT A SECOND PORTION OF SAID TUBE IS SUFFICIENTLY LOW AS TO CAUSE CONDENSATION OF SAID VAPORIZED MATERIAL THEREAT;
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |