Patent US2908655A successfully refreshed from Google Patents.
US2908655A
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Process for preparing a catalyst
Assignee: Sinclair Refining Co
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Filing: 1956-07-16
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Granted: 1959-10-13
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Expires: 1976-07-16
Abstract
No abstract record available.
Inventors
- 👤 Carl D Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:08
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/16; B01J23/70; B01J23/76; B01J23/84
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN THE MANUFACTURE OF A CATALYST, THE STEPS COMPRISING SLURRYING IN AN ESSENTIALLY AQUEOUS MEDIUM AT A TEMPERATURE OF AT LEAST ABOUT 100* F., A WATER-INSOLUBLE INORGANIC COMPOUND OF A METAL OF ATOMIC NUMBER FROM 26TO 30 WITH A WATER-INSOLUBLE ACIDIC OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF METALS OF GROUP V A HAVING AN ATOMIC NUMBER NOT GREATER THAN 41 AND METALS OF GROUP VI A HAVING AN ATOMIC NUMBER NOT LESS THAN 42, MULLING THE SLURRY WITH PARTICULATE CATALYST BASE MATERIAL AND CALCINING THE MULLED SOLIDS.
Claim 2
Dependent Claim
91 words
IN THE MANUFACTURE OF A CATALYST, THE STEPS COMPRISING SLURRYING IN AN ESSENTIALLY AQUEOUS MEDIUM AT A TEMPERATURE OF AT LEAST ABOUT 100* F., A WATER-INSOLUBLE INORGANIC COMPOUND OF A METAL OF ATOMIC NUMBER FROM 26TO 30 WITH A WATER-INSOLUBLE ACIDIC OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF METALS OF GROUP V A HAVING AN ATOMIC NUMBER NOT GREATER THAN 41 AND METALS OF GROUP VI A HAVING AN ATOMIC NUMBER NOT LESS THAN 42, MULLING THE SLURRY WITH PARTICULATE CATALYST BASE MATERIAL AND CALCINING THE MULLED SOLIDS.
References Cited (Backward Citations)
US1943821A
Cited
US2101104A
Cited
US2118829A
Cited
US2696475A
Cited
US2764526A
Cited
US2755257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |