US3218204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of hydrogen halide as a carrier gas in forming ii-vi compound from a crude ii-vicompound
Assignee: Monsanto Co
•
Filing: 1962-07-13
•
Granted: 1965-11-16
•
Expires: 1982-07-13
Abstract
No abstract record available.
Inventors
- 👤 Robert A Ruehrwein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:49
CPC Classifications
C; C30; C30B; C30B25/00; C30B25/02; Y; Y10; Y10S; Y10S148/00; Y10S148/063; Y10S148/064; Y10S148/072; Y10S148/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
PROCESS FOR THE PRODUCTION OF A SINGLE CRYSTAL FORM OF A COMPOUND COMPRISING AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF BERYLLIUM, ZINC, CADMIUM AND MERCURY WITH AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF SULFUR, SELENIUM AND TELLURIUM WHICH COMPRISES REACTING A CRUDE SOURCE OF SAAID COMPOUND WITH HYDROGEN HALIDE VAPOR AT A FIRST TEMPERATURE WITHIN THE RANGE OF FROM 200*C. TO 1900*C., AND SUBJECTING THE OND AND LOWER TEMPERATURE SUFFICIENT TO DEPOSIT A SINGLE CRYSTAL FORM OF THE SAID COMPOUND FROM SAID GASEOUS REACTION MIXTURE.
Claim 2
Dependent Claim
91 words
PROCESS FOR THE PRODUCTION OF A SINGLE CRYSTAL FORM OF A COMPOUND COMPRISING AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF BERYLLIUM, ZINC, CADMIUM AND MERCURY WITH AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF SULFUR, SELENIUM AND TELLURIUM WHICH COMPRISES REACTING A CRUDE SOURCE OF SAAID COMPOUND WITH HYDROGEN HALIDE VAPOR AT A FIRST TEMPERATURE WITHIN THE RANGE OF FROM 200*C. TO 1900*C., AND SUBJECTING THE OND AND LOWER TEMPERATURE SUFFICIENT TO DEPOSIT A SINGLE CRYSTAL FORM OF THE SAID COMPOUND FROM SAID GASEOUS REACTION MIXTURE.
References Cited (Backward Citations)
US2692829A
Cited
US2798989A
Cited
US2858275A
Cited
DE1029941B
Cited
US2974064A
Cited
FR1193194A
Cited
US3072507A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |