US3083241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of carbon tetrachloride
Assignee: Hoechst AG
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Filing: 1960-07-21
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Granted: 1963-03-26
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Expires: 1980-07-21
Abstract
No abstract record available.
Inventors
- 👤 Glemser Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:19
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/20; B01J27/22; C; C07; C07C; C07C17/00; C07C17/093; C07C17/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR THE MANUFACTURE OF CARBON TETRACHLORIDE, WHICH COMPRISES CONTAINING PHOSGENE WITH A COATLYST COMBINATION CONSISTING OF AT LEAST ONE TRANSITION METAL OF GROUPS V TO VIII OF THE PERIODIC TABLE, AT LEAST ONE CARBIDE OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF BORON, SILICON AND A TRANSITION METAL OF GROUPS IV AND V OF THE PERIODIC TABLE, AND ACTIVE CARBON AT A TEMPERATURE BETWEEN ABOUT 250*C. AND ABOUT 600*C.
Claim 2
Dependent Claim
72 words
A PROCESS FOR THE MANUFACTURE OF CARBON TETRACHLORIDE, WHICH COMPRISES CONTAINING PHOSGENE WITH A COATLYST COMBINATION CONSISTING OF AT LEAST ONE TRANSITION METAL OF GROUPS V TO VIII OF THE PERIODIC TABLE, AT LEAST ONE CARBIDE OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF BORON, SILICON AND A TRANSITION METAL OF GROUPS IV AND V OF THE PERIODIC TABLE, AND ACTIVE CARBON AT A TEMPERATURE BETWEEN ABOUT 250*C. AND ABOUT 600*C.
References Cited (Backward Citations)
US2892875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |