US3248448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerisation process
Assignee: BP PLC
•
Filing: 1962-10-05
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Granted: 1966-04-26
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Expires: 1982-10-05
Abstract
No abstract record available.
Inventors
- 👤 Goble Anthony George
- 👤 Holmes Michael Jon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:57
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2512; B; B01; B01J; B01J27/00; B01J27/06; B01J27/128; B01J27/13; B01J37/00; B01J37/22; B01J37/26; C07C5/2206; C07C5/2213; C07C5/2556; C07C2521/00; C07C2521/02; C07C2521/04; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PROCESS FOR THE ISOMERISATION OF AN OLEFINIC HYDROCARBON WHICH IS CAPABLE OF UNDERGOING DOUBLE BOND MIGRATION, WHICH PROCESS COMPRISES CONTACTING THE OLEFIN WITH A CATALYST PREPARED BY CONTACTING ALUMINA WITH A FLUORINATED ORGANIC COMPOUND OF METHANE CONTAINING MORE THAN ONE FLUORINE ATOM, UNDER NON-REDUCING CONDITIONS AND AT A TEMPERATURE IN THE RANGE 350* -450*C. SUCH THAT FLUORINE IS TAKEN UP BY THE ALUMINA IN AMOUNT SUCH THAT THE WEIGHT OF FLUORINE RETAINED IN THE CATALYST IS AT LEAST 1% BY WEIGHT OF THE TOTAL CATALYST YET SUCH THAT THE ALUMINA STRUCTURE OF THE CATALYST IS NOT DESTROYED, WITHOUT THE PRODUCTION OF FREE HALIDE.
Claim 2
Dependent Claim
104 words
A PROCESS FOR THE ISOMERISATION OF AN OLEFINIC HYDROCARBON WHICH IS CAPABLE OF UNDERGOING DOUBLE BOND MIGRATION, WHICH PROCESS COMPRISES CONTACTING THE OLEFIN WITH A CATALYST PREPARED BY CONTACTING ALUMINA WITH A FLUORINATED ORGANIC COMPOUND OF METHANE CONTAINING MORE THAN ONE FLUORINE ATOM, UNDER NON-REDUCING CONDITIONS AND AT A TEMPERATURE IN THE RANGE 350* -450*C. SUCH THAT FLUORINE IS TAKEN UP BY THE ALUMINA IN AMOUNT SUCH THAT THE WEIGHT OF FLUORINE RETAINED IN THE CATALYST IS AT LEAST 1% BY WEIGHT OF THE TOTAL CATALYST YET SUCH THAT THE ALUMINA STRUCTURE OF THE CATALYST IS NOT DESTROYED, WITHOUT THE PRODUCTION OF FREE HALIDE.
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |