US2499505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinylcyclohexene hydrochlorides
Assignee: Sunoco Inc
•
Filing: 1945-11-20
•
Granted: 1950-03-07
•
Expires: 1965-11-20
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Johnson
- 👤 Archibald P Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:33
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/07; C07C17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESS FOR THE PREPARATION OF THE MONOHYDROCHLORIDE OF 1-VINYLCYCLOHEXENE-3 WHICH COMPRISES CONTACTING, WITH VIGOROUS AGITATION, 1VINYLCYCLOHEXENE-3 WITH ABOUT 12 NORMAL AQUEOUS HYDROCHLORIC ACID, FOR FROM ABOUT 2.5 TO ABOUT 5 HOURS WHILE MAINTAINING THE REACTION MIXTURE AT A TEMPERATURE OF FROM ABOUT 55*C. TO ABOUT 750 C., THE REACTANTS BEING PRESENT IN AN AMOUNT SUCH THAT THE VOLUME RATIO OF SAID HYDROCHLORIC ACID TO SAID 1-VINYLCYCLOHEXENE-3 IS ABOUT 0.64, AND SEPARATING THE MONOHYDROXHLORIDE OF 1-VINYLCYCLOHEXENE-3 FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
80 words
A PROCESS FOR THE PREPARATION OF THE MONOHYDROCHLORIDE OF 1-VINYLCYCLOHEXENE-3 WHICH COMPRISES CONTACTING, WITH VIGOROUS AGITATION, 1VINYLCYCLOHEXENE-3 WITH ABOUT 12 NORMAL AQUEOUS HYDROCHLORIC ACID, FOR FROM ABOUT 2.5 TO ABOUT 5 HOURS WHILE MAINTAINING THE REACTION MIXTURE AT A TEMPERATURE OF FROM ABOUT 55*C. TO ABOUT 750 C., THE REACTANTS BEING PRESENT IN AN AMOUNT SUCH THAT THE VOLUME RATIO OF SAID HYDROCHLORIC ACID TO SAID 1-VINYLCYCLOHEXENE-3 IS ABOUT 0.64, AND SEPARATING THE MONOHYDROXHLORIDE OF 1-VINYLCYCLOHEXENE-3 FROM THE REACTION MIXTURE.
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) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |