US3825504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon hydroprocessing catalyst
Assignee: Universal Oil Products Co
•
Filing: 1972-01-27
•
Granted: 1974-07-23
•
Expires: 1992-01-27
Abstract
Abstract A HYDROPROCESSING CATALYST OF AN ALUMINA-CONTAINING CARRIER MATERIAL, A NICKEL COMPONENT AND A GROUP V-B MATALLIC COMPONENT. THE CATALYST IS PREPARED VIA COEXTRUSION WHICH INHIBITS THE FORMATION OF NICKEL ALUMINATE TO THE EXTENT THAT LESS THAN ABOYUT 0.1% THEREOF APPEARS IN THE FINAL CATALYTIC COMPOSITE.
Inventors
- 👤 L Hilfman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:10
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/847; B01J37/00; B01J37/22; C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G49/00; C10G49/02; C10G49/04
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |