US2798091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of beta-fluorocarboxylic acids
Assignee: Universal Oil Products Co
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Filing: 1954-07-19
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Granted: 1957-07-02
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Expires: 1974-07-19
Abstract
No abstract record available.
Inventors
- 👤 Julian M Mavity
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:06
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A PROCESS FOR PRODUCING A BETA-FLUOROCARBOXYLIC ACID WHICH COMPRISES SUBJECTING A NORMALLY GASEOUS OLEFINIC HYDROCARBON AND CARBON DIOXIDE, IN A RATIO OF CO2 TO OLEFIN OF FROM ABOUT 10:1 TO ABOUT 20:1, TO THE ACTION OF ANHYDROUS HYDROGEN FLUORIDE AT A REACTION TEMPERATURE OF FROM ABOUT 0* TO ABOUT 100*C. AND A PRESSURE OF FROM ABOUT 5 TO ABOUT 1000 ATMOSPHERES.
Claim 2
Dependent Claim
61 words
A PROCESS FOR PRODUCING A BETA-FLUOROCARBOXYLIC ACID WHICH COMPRISES SUBJECTING A NORMALLY GASEOUS OLEFINIC HYDROCARBON AND CARBON DIOXIDE, IN A RATIO OF CO2 TO OLEFIN OF FROM ABOUT 10:1 TO ABOUT 20:1, TO THE ACTION OF ANHYDROUS HYDROGEN FLUORIDE AT A REACTION TEMPERATURE OF FROM ABOUT 0* TO ABOUT 100*C. AND A PRESSURE OF FROM ABOUT 5 TO ABOUT 1000 ATMOSPHERES.
References Cited (Backward Citations)
US2053233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |