US3769235A
Expired / Lapsed
US
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Hydrocracking catalyst comprising a group viii component and an amorphous aluminosilicate component
Assignee: Chevron USA Inc
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Filing: 1971-03-31
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Granted: 1973-10-30
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Expires: 1991-03-31
Abstract
Abstract HYDROCRACKING CATALYST COMPRISING PALLADIUM AND AN AMORPHOUS ALUMINOSILICATE COMPONENT HAVING AN ALUMINA CONTENT OF 40 TO 95 WEIGHT PERCENT, SAID CATALYST, WITH THE HYDROGENATING COMPONENT IN THE OXIDE FROM, HAVING BEEN SUBJECTED TO A HEAT TREATMENT IN A SUBSTANTIALLY DRY NONREDUCING GAS AT A TEMPERATURE IN THE RANGE 1200* TO 1800* F., AND HYDROCRACKING PROCESS USING SAID CATALYST.
Inventors
- 👤 R White
- 👤 C Egan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:43
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/08; B01J21/00; B01J21/12; B01J23/00; B01J23/38; B01J23/40; B01J23/44; C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/14; C10G47/16; C10G47/18
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |