US3677972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocracking catalyst
Assignee: Standard Oil Co
•
Filing: 1969-04-07
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Granted: 1972-07-18
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Expires: 1989-04-07
Abstract
Abstract DISCLOSED IS A HYDROCRACKING CATALYST CONSISTING ESSENTIALLY OF AN ULTRASTABLE, LARGE PORE, CRYSTALLINE ALUMINOSILICATE MATERIAL CONTAINING LESS THAN ABOUT 1% ALKALI METAL AND HAVING DEPOSITED THEREON A HYDROGENATION COMPONENT SELECTED FROM THE METALS, OXIDES, OR SULFIDES OF THE GROUP VIII ELEMENTS OF THE PERIODIC TABLE. THE CATALYST MAY ADDITIONALLY CONTAIN A METAL, OXIDE OR SULFIDE OF A GROUP VI-B ELEMENT.
Inventors
- 👤 Louis C Gutberlet
- 👤 Ralph J Bertolacini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:22
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/084
Claims Analysis
Total Claims: 0
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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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |