Patent US2888501A successfully refreshed from Google Patents.
US2888501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and catalyst for isomerizing hydrocarbons
Assignee: Pure Oil Co
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Filing: 1956-12-31
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Granted: 1959-05-26
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Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Hillis O Folkins
- 👤 Norman L Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:57
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/2724; B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/755; B01J23/76; B01J23/84; B01J23/85; B01J27/00; B01J27/14; B01J27/185; B01J27/1853; B01J27/186; B01J27/188; C07C5/2705; C07C5/271; C07C5/2716; C07C5/2767; C07C5/277; C07C5/2791; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
111 words
A CATALYST FOR EFFECTING THE ISOMERIZATION OF SATURATED HYDROCARBONS COMPRISING A MAJOR PORTION OF A MIXED SILICA-ALUMINA SUPPORT CONTAINING ABOT 25%60%, BY WEIGHT, OF ALUMINA HAVING INCORPORATED THEREIN A MINOR QUANTITY OF A HYDROGENATION AGENT SELECTED FROM THE GROUP CONSISTING OF NICKEL, NICKEL MOLYBDATE, NICKEL TUNGSTATE, AND SILICA-ALUMINA SUPPORT CONSISTING ESSENTIALLY OF A MECHANICAL ADMIXTURE OF (1) CALCINED, HIGHALUMINA CONSTITUENT CONTAINING 1-10% BY WEIGHT OF ALUMINA CONSTITUENT CONTAINING 1-10% BY WEIGHT OF SILICA AND (2) CALCINED HIGH-SILICA CONSTITUENT CONTAINING 10-25% BY WEIGHT OF ALUMINA, THE RESPECTIVE PORTIONS OF SAID CONSTITUENTS BEING SUFFICIENT TO PROVIDE A COMPOSITE SILICA-ALUMINA ADMIXTURE CONTAINING ABOUT 25%60% BY WEIGHT OF ALUMINA AND THE REMAINDER BEING SUBSTANTIALLY SILICA.
Claim 2
Dependent Claim
111 words
A CATALYST FOR EFFECTING THE ISOMERIZATION OF SATURATED HYDROCARBONS COMPRISING A MAJOR PORTION OF A MIXED SILICA-ALUMINA SUPPORT CONTAINING ABOT 25%60%, BY WEIGHT, OF ALUMINA HAVING INCORPORATED THEREIN A MINOR QUANTITY OF A HYDROGENATION AGENT SELECTED FROM THE GROUP CONSISTING OF NICKEL, NICKEL MOLYBDATE, NICKEL TUNGSTATE, AND SILICA-ALUMINA SUPPORT CONSISTING ESSENTIALLY OF A MECHANICAL ADMIXTURE OF (1) CALCINED, HIGHALUMINA CONSTITUENT CONTAINING 1-10% BY WEIGHT OF ALUMINA CONSTITUENT CONTAINING 1-10% BY WEIGHT OF SILICA AND (2) CALCINED HIGH-SILICA CONSTITUENT CONTAINING 10-25% BY WEIGHT OF ALUMINA, THE RESPECTIVE PORTIONS OF SAID CONSTITUENTS BEING SUFFICIENT TO PROVIDE A COMPOSITE SILICA-ALUMINA ADMIXTURE CONTAINING ABOUT 25%60% BY WEIGHT OF ALUMINA AND THE REMAINDER BEING SUBSTANTIALLY SILICA.
Claim 3
Dependent Claim
11 words
AN ISOMERIZATION PROCESS WHICH COMPRISIS REACTING ISOMERIZABLE C5-C8, SATURATED HYDROCARBONS AT
Claim 4
Dependent Claim
11 words
AN ISOMERIZATION PROCESS WHICH COMPRISIS REACTING ISOMERIZABLE C5-C8, SATURATED HYDROCARBONS AT
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) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |