Patent US3023173A successfully refreshed from Google Patents.
US3023173A
Expired / Lapsed
US
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Manufacture of catalyst
Assignee: Universal Oil Products Co
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Filing: 1959-04-29
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Granted: 1962-02-27
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Expires: 1979-04-29
Abstract
No abstract record available.
Inventors
- 👤 William G Nixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:33
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/16; B01J37/18; B01J21/00; B01J21/02; B01J21/04; B01J23/00; B01J23/38; B01J23/40; B01J23/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD FOR MANUFACTURING A CATALYTIC COMPOSITE COMPRISING A REFRACTORY INORGANIC OXIDE AND A CATALYTIC METAL COMPONENT, WHICH METHOD COMPRISES PREPARING REFRACTORY INORGANIC OXIDE PARTICLES, DRYING SAID PARTICLES AT A TEMPERATURE LESS THAN ABOUT 212*F., CONTACTING THE RESULTANT DRIED PARTICLES WITH WET HYDROGEN, CONTAINING FROM ABOUT 5.0 MOL PERCENT ABOUT 20.0 MOL PERCENT OF WATER, AT A TEMPERATURE IN EXCESS OF ABOUT 400*C., SUBJECTING THE HYDROGEN-TREATED PARTICLES TO HIGH-TEMPERATURE CALCINATION IN AN ATMOSPHERE OF AIR, AND THEREAFTER COMBINING SAID CATALYTIC COMPONENT WITH THE CALCINED REFRACTORY INORGANIC OXIDE PARTICLES.
Claim 2
Independent Claim
88 words
A METHOD FOR MANUFACTURING A CATALYTIC COMPOSITE COMPRISING A REFRACTORY INORGANIC OXIDE AND A CATALYTIC METAL COMPONENT, WHICH METHOD COMPRISES PREPARING REFRACTORY INORGANIC OXIDE PARTICLES, DRYING SAID PARTICLES AT A TEMPERATURE LESS THAN ABOUT 212*F., CONTACTING THE RESULTANT DRIED PARTICLES WITH WET HYDROGEN, CONTAINING FROM ABOUT 5.0 MOL PERCENT ABOUT 20.0 MOL PERCENT OF WATER, AT A TEMPERATURE IN EXCESS OF ABOUT 400*C., SUBJECTING THE HYDROGEN-TREATED PARTICLES TO HIGH-TEMPERATURE CALCINATION IN AN ATMOSPHERE OF AIR, AND THEREAFTER COMBINING SAID CATALYTIC COMPONENT WITH THE CALCINED REFRACTORY INORGANIC OXIDE PARTICLES.
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) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |