Patent US2974111A successfully refreshed from Google Patents.
US2974111A
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Activated inorganic metal oxides
Assignee: Universal Oil Products Co
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Filing: 1958-10-13
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Granted: 1961-03-07
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Expires: 1978-10-13
Abstract
No abstract record available.
Inventors
- 👤 William G Nixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:31
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/20; B01J21/00; B01J21/02; B01J21/04; B01J23/00; B01J23/38; B01J23/40; B01J23/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
47 words
A PROCESS FOR THE MANUFACTURE OF A REFRACTORY INORGANIC METAL OXIDE OF INCREASED SURFACE AREA WHICH COMPRISES PREPARING A WET REFRACTORY METAL OXIDE, THEREAFTER CONTACTING SAID OXIDE IN THE WET CONDITION WITH SULFUR DIOXIDE AT A TEMPERATURE IN EXCESS OF 25*C., AND CALCINING THE THUS TREATED OXIDE.
Claim 2
Dependent Claim
47 words
A PROCESS FOR THE MANUFACTURE OF A REFRACTORY INORGANIC METAL OXIDE OF INCREASED SURFACE AREA WHICH COMPRISES PREPARING A WET REFRACTORY METAL OXIDE, THEREAFTER CONTACTING SAID OXIDE IN THE WET CONDITION WITH SULFUR DIOXIDE AT A TEMPERATURE IN EXCESS OF 25*C., AND CALCINING THE THUS TREATED OXIDE.
Claim 3
Independent Claim
54 words
A METHOD FOR MANUFACTURING A REFRACTORY INORGANIC METAL OXIDE-NOBLE METAL CONTAINING CATALYTIC COMPOSITE WHICH COMPRISES PREPARING A WET INORGANIC METAL OXIDE, CONTACTING THE PREPARED OXIDE IN THE WET CONDITION WITH SULFUR DIOXIDE AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 700*C. AND THEREAFTER IMPREGNATING THE SULFUR DIOXIDE-TREATED METAL OXIDE WITH SAID NOBLE METAL.
Claim 4
Independent Claim
54 words
A METHOD FOR MANUFACTURING A REFRACTORY INORGANIC METAL OXIDE-NOBLE METAL CONTAINING CATALYTIC COMPOSITE WHICH COMPRISES PREPARING A WET INORGANIC METAL OXIDE, CONTACTING THE PREPARED OXIDE IN THE WET CONDITION WITH SULFUR DIOXIDE AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 700*C. AND THEREAFTER IMPREGNATING THE SULFUR DIOXIDE-TREATED METAL OXIDE WITH SAID NOBLE METAL.
References Cited (Backward Citations)
US2370707A
Cited
US2859185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |