US3003003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of 1 chloro-2,2,2, trifluoro-ethane
Assignee: Imperial Chemical Industries Ltd
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Filing: 1959-04-22
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Granted: 1961-10-03
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Expires: 1979-04-22
Abstract
No abstract record available.
Inventors
- 👤 Mcginty Robert Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:05
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/20; C07C17/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS FOR THE MANUFACTURE OF 1-CHLORO-2:2:2TRIFLUOROETHANE WHICH COMPRISES HEATING TRICHLOROETHYLENE WITH HYDROGEN FLUORIDE AT SUPERATMOSPHERIC PRESSURE IN THE PRESENCE OF AT LEAST ONE MOLE OF AN ANTIMONY FLUOROCHLORIDE CATALYST PER MOLE OF TRICHLOROETHYLENE AT A TEMPERATURE OF ABOUT 60* TO ABOUT 130*C. AND ADDING CHLORINE TO THE REACTION MIXTURE IN AN AMOUNT NOT GREATER THAN ONE MOLE OF CHLORINE TO EACH MOLE OF TRICHLOROETHYLENE.
Claim 2
Dependent Claim
65 words
A PROCESS FOR THE MANUFACTURE OF 1-CHLORO-2:2:2TRIFLUOROETHANE WHICH COMPRISES HEATING TRICHLOROETHYLENE WITH HYDROGEN FLUORIDE AT SUPERATMOSPHERIC PRESSURE IN THE PRESENCE OF AT LEAST ONE MOLE OF AN ANTIMONY FLUOROCHLORIDE CATALYST PER MOLE OF TRICHLOROETHYLENE AT A TEMPERATURE OF ABOUT 60* TO ABOUT 130*C. AND ADDING CHLORINE TO THE REACTION MIXTURE IN AN AMOUNT NOT GREATER THAN ONE MOLE OF CHLORINE TO EACH MOLE OF TRICHLOROETHYLENE.
References Cited (Backward Citations)
US2005708A
Cited
US2637747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |