Patent US2982789A successfully refreshed from Google Patents.
US2982789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of trifluoroethanol
Assignee: Honeywell International Inc
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Filing: 1957-12-13
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Granted: 1961-05-02
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Expires: 1977-12-13
Abstract
No abstract record available.
Inventors
- 👤 Lee B Smith
- 👤 Woolf Cyril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:20
CPC Classifications
C; C07; C07C; C07C31/00; C07C31/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
THE PROCESS FOR MAKING CF3CH2OH WHICH COMPRISES SUBJECTING CF3CHO IN A REACTION ZONE AT SUBSTANTIALLY ATMOSPHERIC PRESSURE TO THE ACTION OF HYDROGEN WHILE MAINTAINING TEMPERATURE SUBSTANTIALLY IN THE RANGE OF 200-300*C. AND WHILE IN THE PRESENCE OF A METALLIC COPPER-CR2O3 CATALYST, AND RECOVERING CF3CH2OH FROM THE RESULTING REACTION PRODUCT.
Claim 2
Dependent Claim
49 words
THE PROCESS FOR MAKING CF3CH2OH WHICH COMPRISES SUBJECTING CF3CHO IN A REACTION ZONE AT SUBSTANTIALLY ATMOSPHERIC PRESSURE TO THE ACTION OF HYDROGEN WHILE MAINTAINING TEMPERATURE SUBSTANTIALLY IN THE RANGE OF 200-300*C. AND WHILE IN THE PRESENCE OF A METALLIC COPPER-CR2O3 CATALYST, AND RECOVERING CF3CH2OH FROM THE RESULTING REACTION PRODUCT.
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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |