US3558476A
Expired / Lapsed
US
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Catalytic cracking process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1968-06-12
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Granted: 1971-01-26
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Expires: 1988-06-12
Abstract
Abstract A HYDROCARBON CONVERSION CATALYST COMPOSITION COMPRISING A PHYSICAL ADMIXTURE OF A CONVENTIONAL, AMORPHOUS, SILICA-CONTAINING CRACKING CATALYSTS AND A CRYSTALLINE ALUMINO-SULICATE ZEOLITE SUSPENDED IN AN INORGANIC OXIDE GEL MATRIX. THE CATALYST IS PARTICULARLY USEFUL IN THE CATALYTIC CRACKING OF HYDROCARBON FEEDS. WHEN SO USED, THE CATALYST COMPOSITION IS MORE ACTIVE AND MORE SELECTIVE THAN WOULD BE PREDICTED FROM A CONSIDERATION OF ITS RELATIVE COMPOSITION.
Inventors
- 👤 Leroy V Robbins Jr
- 👤 Joseph S Anderson
- 👤 Clark E Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:01
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; Y; Y10; Y10S; Y10S208/00; Y10S208/02
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |