US2994727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of specific geometric olefin isomers
Assignee: Universal Oil Products Co
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Filing: 1958-03-24
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Granted: 1961-08-01
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Expires: 1978-03-24
Abstract
No abstract record available.
Inventors
- 👤 Herbert R Appell
- 👤 Erwin E Meisinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:22
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/2206; C07C5/226; B; B01; B01J; B01J23/00; B01J23/02; B01J23/04; C07C2523/00; C07C2523/02; C07C2523/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PROCESS FOR PREPARING A CIS AND TRANS OLEFIN MIXTURE IN WHICH THE RATIO OF CIS TO TRANS ISOMERS IS GREATER THAN THE QUILIBIRUM VALUE WHICH COMPRISES ISOMERIZING AN OLEFINIC HYDROCARBON FEED WHOSE OLEFIN CONTENT CONSISTS ESSENTIALLY OF AT LEAST ONE OLEFIN OF MORE THAN THREE CARBON ATOMS PER MOLECULE AND HAVING THE FOLLOWING STRUCTURE:
Claim 2
Dependent Claim
55 words
A PROCESS FOR PREPARING A CIS AND TRANS OLEFIN MIXTURE IN WHICH THE RATIO OF CIS TO TRANS ISOMERS IS GREATER THAN THE QUILIBIRUM VALUE WHICH COMPRISES ISOMERIZING AN OLEFINIC HYDROCARBON FEED WHOSE OLEFIN CONTENT CONSISTS ESSENTIALLY OF AT LEAST ONE OLEFIN OF MORE THAN THREE CARBON ATOMS PER MOLECULE AND HAVING THE FOLLOWING STRUCTURE:
References Cited (Backward Citations)
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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) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |