Patent US3687869A successfully refreshed from Google Patents.
US3687869A
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US
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Hydrocracking catalyst
Assignee: Standard Oil Co
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Filing: 1969-04-09
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Granted: 1972-08-29
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Expires: 1989-04-09
Abstract
Abstract THIS INVENTION CONCERNS A HYDROCRACKING CATALYST INCLUDING AN ULTRATABLE MOLECULAR SIEVE IMPREGNATED WITH A PLATINUM ERIES METAL. THE SIEVE IS CHARACTERIZED BY (A) A MAXIMUM CUBIC CELL DIMENSION OF ABOUT 24.55 A., (B) AND 3625 CM.-18 AND (C) AN ALKALI METAL CONTENT OF LESS THAN ABOUT 1 WEIGHT PERCENT. THIS IMPREGNATED SIEVE IS DISPERSED IN A SILICA-ALUMINA MATRIX, AND THE SIEVE-MATRIX MIX IS IMPREGNATED WITH AN OXIDE OF A METAL, SULFIDE OF A METAL, OR A METAL IN GROUP VI OR VIII OF THE PERIODIC TABLE OTHER THAN THE PLATINUM SERIES METALS.
Inventors
- 👤 Albert L Hensley Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:13
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/064
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |