Patent US3661805A successfully refreshed from Google Patents.
US3661805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing an extruded catalyst composition
Assignee: Universal Oil Products Co
•
Filing: 1969-11-21
•
Granted: 1972-05-09
•
Expires: 1989-11-21
Abstract
Abstract A METHOD FOR THE MANUFACTURE OF AN EXTRUDED CATALYST COMPOSITION COMPRISING A GROUP VI-B METAL, A GROUP VIII METAL AND A REFRACTORY INORGANIC OXIDE GEL. THE GROUP VI-B AND GROUP VIII METAL COMPONENTS ARE COMBINED WITH THE REFRACTORY INORGANIC OXIDE GEL, SAID GEL BEING PEPTIZED BEFORE OR AFTER COMBINATION WITH THE METALLIC COMPONENTS. THE MIXTURE IS SUBSEQUENTLY TREATED WITH AN AQUEOUS ALKALINE REAGENT TO FORM AN EXTRUDABLE MASS OF FINELY DIVIDED PARTICLE. UPON EXTRUSION, THE EXTRUDATE IS DRIED AND OXIDIZED.
Inventors
- 👤 Edward Horvath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:13
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J37/00; B01J37/0009; C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |