US2943129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and catalyst for isomerizing normal paraffins
Assignee: Pure Oil Co
•
Filing: 1958-10-07
•
Granted: 1960-06-28
•
Expires: 1978-10-07
Abstract
No abstract record available.
Inventors
- 👤 Elmer L Miller
- 👤 Hillis O Folkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:46
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; B01J27/128; B01J27/13; C; C07; C07C; C07C5/00; C07C5/22; C07C5/2206; C07C5/226; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791; C07C2521/00; C07C2521/12; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/44
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
51 words
THE METHOD OF PREPARING A HYDROCARBON ISOMERIZATION CATALYST WHICH COMPRISES IMPREGNATING A PRECALCINED SLICA-ALUMINA CATALYST SUPPORT, CONTAINING 50-95 WT. PERCENT SILICA, WITH A C2-C5 FLUORINE-SUBSTITUTED ALIPHATIC ACID AND A SOLUTION OF A REDUCIBLE GROUP VIII NOBLE METAL COMPOUND, DRYING THE IMPREGNATED CATALYST SUPPORT, AND REDUCING THE CATALYST WITH HYDROGEN AT 750*-975*F.
Claim 2
Independent Claim
51 words
THE METHOD OF PREPARING A HYDROCARBON ISOMERIZATION CATALYST WHICH COMPRISES IMPREGNATING A PRECALCINED SLICA-ALUMINA CATALYST SUPPORT, CONTAINING 50-95 WT. PERCENT SILICA, WITH A C2-C5 FLUORINE-SUBSTITUTED ALIPHATIC ACID AND A SOLUTION OF A REDUCIBLE GROUP VIII NOBLE METAL COMPOUND, DRYING THE IMPREGNATED CATALYST SUPPORT, AND REDUCING THE CATALYST WITH HYDROGEN AT 750*-975*F.
Claim 3
Independent Claim
22 words
A METHOD OF ISOMERIZING C4-C7 NORMAL PARAFFIN HYDROCARBONS WHICH COMPRISES PASSING HYDROGEN AND A NORMAL PARAFFIN HYDROCARBON AT A TEMPERATURE IN THE
Claim 4
Independent Claim
22 words
A METHOD OF ISOMERIZING C4-C7 NORMAL PARAFFIN HYDROCARBONS WHICH COMPRISES PASSING HYDROGEN AND A NORMAL PARAFFIN HYDROCARBON AT A TEMPERATURE IN THE
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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) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |