Patent US2576743A successfully refreshed from Google Patents.
US2576743A
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Preparation of 4-ethylcyclohexene
Assignee: PPG Architectural Coatings Canada Inc
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Filing: 1947-05-09
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Granted: 1951-11-27
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Expires: 1967-05-09
Abstract
No abstract record available.
Inventors
- 👤 Allenby Owen Clement Wentworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:40
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; C07C5/05; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/755; C07C2601/00; C07C2601/12; C07C2601/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A PROCESS FOR THE PREPARATION OF 4-ETHYLCYCLOHEXENE WHICH COMPRISES REACTING 4-VINYLCYCLOHEXENE WITH HYDROGEN IN THE PRESENCE OF A NICKEL CATALYST AND AN ALIPHATIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF METHANOL AND ETHANOL AT 10-20* C. UNTIL SLIGHTLY MORE THAN 1 MOLE OF HYDROGEN HAS BEEN ABSORBED FOR EACH MOLE OF 4-VINYLCYCLOHEXENE.
Claim 2
Dependent Claim
52 words
A PROCESS FOR THE PREPARATION OF 4-ETHYLCYCLOHEXENE WHICH COMPRISES REACTING 4-VINYLCYCLOHEXENE WITH HYDROGEN IN THE PRESENCE OF A NICKEL CATALYST AND AN ALIPHATIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF METHANOL AND ETHANOL AT 10-20* C. UNTIL SLIGHTLY MORE THAN 1 MOLE OF HYDROGEN HAS BEEN ABSORBED FOR EACH MOLE OF 4-VINYLCYCLOHEXENE.
References Cited (Backward Citations)
US1879767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |