US2568964A
Expired / Lapsed
US
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Catalytic isomerization of olefinic hydrocarbons
Assignee: Gulf Research and Development Co
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Filing: 1947-01-29
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Granted: 1951-09-25
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Expires: 1967-01-29
Abstract
No abstract record available.
Inventors
- 👤 Charles W Montgomery
- 👤 Jr George L Sumner
- 👤 Berg Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:11
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/2206; C07C5/2226; C07C5/2246; B; B01; B01J; B01J21/00; B01J21/02; B01J21/04; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C07C2521/00; C07C2521/02; C07C2521/04; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A METHOD FOR ISOMERIZING OLEFIN HYDROCARBONS WHICH COMPRISES PASSING SAID HYDROCARBONS UNDER ISOMERIZATION CONDITIONS OVER A CATALYST CONSISTING OF ALUMINA IMPREGNATED WITH GASEOUS, ANHYDROUS HYDROGEN FLUORIDE,
Claim 2
Independent Claim
26 words
A METHOD FOR ISOMERIZING OLEFIN HYDROCARBONS WHICH COMPRISES PASSING SAID HYDROCARBONS UNDER ISOMERIZATION CONDITIONS OVER A CATALYST CONSISTING OF ALUMINA IMPREGNATED WITH GASEOUS, ANHYDROUS HYDROGEN FLUORIDE,
References Cited (Backward Citations)
GB534151A
Cited
US2331473A
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GB555288A
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US2371726A
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US2406869A
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US2381562A
Cited
US2428741A
Cited
US2397085A
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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) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |