US3067012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing silicon tetrachloride in a molten salt bath
Assignee: Cabot Corp
•
Filing: 1959-12-15
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Granted: 1962-12-04
•
Expires: 1979-12-15
Abstract
No abstract record available.
Inventors
- 👤 Kenneth P Seltzer
- 👤 Charles B Wendell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:03
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PROCESS FOR PRODUCING SILICON TETRACHLORIDE AT HICH YIELDS WHICH COMPRISES REACTING IN A MOLTEN BATH COMPRISING AT LEAST ONE SALT CHOSEN FROM THE GROUP CONSISTING OF THE ALKALI METAL HALIDES AND THE ALKALINE EARTH METAL HALIDES, SILICS SAND, AND A REACTANT CHOSEN FROM THE GROUP CONSISTING OF A GASEOUS MIXTURE CONTAINING CARBON MONOXIDE AND CHLORINE, AND PHOSEGENE, AT TEMPERATURES BETWEEN ABOUT 2200*F. AND ABOUT 2800*F.
Claim 2
Dependent Claim
66 words
A PROCESS FOR PRODUCING SILICON TETRACHLORIDE AT HICH YIELDS WHICH COMPRISES REACTING IN A MOLTEN BATH COMPRISING AT LEAST ONE SALT CHOSEN FROM THE GROUP CONSISTING OF THE ALKALI METAL HALIDES AND THE ALKALINE EARTH METAL HALIDES, SILICS SAND, AND A REACTANT CHOSEN FROM THE GROUP CONSISTING OF A GASEOUS MIXTURE CONTAINING CARBON MONOXIDE AND CHLORINE, AND PHOSEGENE, AT TEMPERATURES BETWEEN ABOUT 2200*F. AND ABOUT 2800*F.
References Cited (Backward Citations)
US2253471A
Cited
US2952513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |