US2745848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of cyclohexene oxide
Assignee: FMC Corp
•
Filing: 1953-02-25
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Granted: 1956-05-15
•
Expires: 1973-02-25
Abstract
No abstract record available.
Inventors
- 👤 Frank P Greenspan
- 👤 Ralph J Gall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:35
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
THE METHOD OF MAKING CYCLOHEXENE OXIDE WHICH COMPRISES STIRRING CYCLOHEXENE WITH A MINOR EXCESS OF PERPROPIONIC ACID AT A TEMPERATURE OF 5* TO 20* C. FOR A PERIOD OF ABOUT 2 TO 4 HOURS, ADJUSTING THE REACTING MIXTURE TO A PH OF SUBSTANTIALLY 7 AND SEPARATING THE CYCLOHEXENE OXIDE FROM THE REACTION MIXTURE.
Claim 2
Independent Claim
53 words
THE METHOD OF MAKING CYCLOHEXENE OXIDE WHICH COMPRISES STIRRING CYCLOHEXENE WITH A MINOR EXCESS OF PERPROPIONIC ACID AT A TEMPERATURE OF 5* TO 20* C. FOR A PERIOD OF ABOUT 2 TO 4 HOURS, ADJUSTING THE REACTING MIXTURE TO A PH OF SUBSTANTIALLY 7 AND SEPARATING THE CYCLOHEXENE OXIDE FROM THE REACTION MIXTURE.
References Cited (Backward Citations)
US2458484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |