US3114785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for shifting the double bond in an olefinic hydrocarbon
Assignee: Universal Oil Products Co
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Filing: 1960-07-21
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Granted: 1963-12-17
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Expires: 1980-07-21
Abstract
No abstract record available.
Inventors
- 👤 George L Hervert
- 👤 Carl B Linn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:14
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2525; C07C5/2543
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR SHIFTING A DOUBLE BOND OF AN OLEFINIC HYDROCARBON OF MORE THAN THREE CARBON ATOMS PER MOLECULE TO A MORE CENTRALLY LOCATED POSITION IN THE HYDROCARBON MOLECULE, WHICH COMPRISES ISOMERIZING SAID OLEFINIC HYDROCARBON IN CONTACT WITH A PREFORMED COMBINED BORON TRIFLUORIDE-ALUMINA CATALYST PREPARED BY TREATING SUBSTANTIALLY ANNYDROUS ALUMINA WITH BORON TRIFLUORIDE AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 250*C. UNTIL BORON TRIFLUORIDE NO LONGER COMBINES WITH THE ALUMINA.
Claim 2
Dependent Claim
72 words
A PROCESS FOR SHIFTING A DOUBLE BOND OF AN OLEFINIC HYDROCARBON OF MORE THAN THREE CARBON ATOMS PER MOLECULE TO A MORE CENTRALLY LOCATED POSITION IN THE HYDROCARBON MOLECULE, WHICH COMPRISES ISOMERIZING SAID OLEFINIC HYDROCARBON IN CONTACT WITH A PREFORMED COMBINED BORON TRIFLUORIDE-ALUMINA CATALYST PREPARED BY TREATING SUBSTANTIALLY ANNYDROUS ALUMINA WITH BORON TRIFLUORIDE AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 250*C. UNTIL BORON TRIFLUORIDE NO LONGER COMBINES WITH THE ALUMINA.
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) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |