US2783211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing impregnated catalysts
Assignee: Gulf Research and Development Co
•
Filing: 1950-07-31
•
Granted: 1957-02-26
•
Expires: 1970-07-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Mckinley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:40
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/28; B01J37/00; B01J37/02; B01J37/0201; B01J37/0203; Y; Y10; Y10S; Y10S502/00; Y10S502/506; Y10S502/523
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF PREPARING A CATALYST WHICH COMPRISES IMPREGNATING A POROUS CATALYST CARRIER WITH A WATER SOLUTION OF A COMPOUND OF A CATALYST METAL, AND TREATING THE IMPREGNATED CARRIER WITH AT LEAST 50 PERCENT WATER SOLUBLE, ORGANIC LIQUID WHICH IS NON-REACTIVE WITH RESPECT TO SAID COMPOUND OF A CATALYST METAL AND WHICH FORMS A MIXTURE WITH THE WATER OF SAID SOLUTION IN WHICH SAID METAL COMPOUND IS AT LEAST PARTIALLY INSOLUBLE WHEREBY TO EXERT AN ANTI-SOLVENT EFFECT UPON SAID METAL COMPOUND TO PHYSICALLY PRECIPITATE SAID COMPOUND ON SAID CARRIER AND DRYING AND CALCINING THE RESULTANT MASS.
Claim 2
Independent Claim
96 words
THE METHOD OF PREPARING A CATALYST WHICH COMPRISES IMPREGNATING A POROUS CATALYST CARRIER WITH A WATER SOLUTION OF A COMPOUND OF A CATALYST METAL, AND TREATING THE IMPREGNATED CARRIER WITH AT LEAST 50 PERCENT WATER SOLUBLE, ORGANIC LIQUID WHICH IS NON-REACTIVE WITH RESPECT TO SAID COMPOUND OF A CATALYST METAL AND WHICH FORMS A MIXTURE WITH THE WATER OF SAID SOLUTION IN WHICH SAID METAL COMPOUND IS AT LEAST PARTIALLY INSOLUBLE WHEREBY TO EXERT AN ANTI-SOLVENT EFFECT UPON SAID METAL COMPOUND TO PHYSICALLY PRECIPITATE SAID COMPOUND ON SAID CARRIER AND DRYING AND CALCINING THE RESULTANT MASS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |