US2617834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydration of olefins
Assignee: Atlantic Richfield Co
•
Filing: 1950-02-21
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Granted: 1952-11-11
•
Expires: 1970-02-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Woodbridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:15
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/03; C07C29/04; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A METHOD FOR CONVERTING PRIMARY AND SECONDARY OLEGFINS INTO AN ALCOHOL, WHICH COMPRISES CONTCTING SAID OLEFIN WITH AN AQUEOUS SOLUTION OF BF3 HAVING A SPECIFIC GRAVITY BETWEEN 1.65 AND 1.75 AT 25* C. AND LIQUIFIED SO2 AT A REACTION TEMPERATURE OF +25* C. TO -50* C. THE WEIGHT RATIO OF SO2 TO OLEFIN BEING FROM 0.05 TO 5:1, AND RECOVERING THE RESULTING ALCOHOL FROM THE REACTANT MIXTURE.
Claim 2
Independent Claim
67 words
A METHOD FOR CONVERTING PRIMARY AND SECONDARY OLEGFINS INTO AN ALCOHOL, WHICH COMPRISES CONTCTING SAID OLEFIN WITH AN AQUEOUS SOLUTION OF BF3 HAVING A SPECIFIC GRAVITY BETWEEN 1.65 AND 1.75 AT 25* C. AND LIQUIFIED SO2 AT A REACTION TEMPERATURE OF +25* C. TO -50* C. THE WEIGHT RATIO OF SO2 TO OLEFIN BEING FROM 0.05 TO 5:1, AND RECOVERING THE RESULTING ALCOHOL FROM THE REACTANT MIXTURE.
References Cited (Backward Citations)
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US2135455A
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US2220307A
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US2457882A
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US2442644A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |