Patent US3228892A successfully refreshed from Google Patents.
US3228892A
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Method for preparing supported catalytic structures
Assignee: Texaco Inc
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Filing: 1960-12-29
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Granted: 1966-01-11
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Expires: 1980-12-29
Abstract
No abstract record available.
Inventors
- 👤 Edward L Cole
- 👤 Edwin C Knowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:46
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/02; B01J37/024; B01J37/0215; B01J37/0225; B01J37/0226
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD FOR PREPARING A SUPPORTED CATALYST WHICH COMPRISES PRODUCING BY ANODIC OXIDATION AN ADHERENT OXIDE FILM OF AT LEAST 0.5 MIL THICKNESS INTEGRAL WITH THE INNER WALL SURFACE OF A METAL TUBULAR SUPPORT AS A CONDUIT FOR REACTANTS UNDERGOING CATALYSIS, FORMING A SOLUTION OF A SOLUBLE COMPOUND OF A METAL CATALYST MATERIAL, AND PRESSURING SAID SOLUTION WITH HYDROGEN AT AN EFFECTIVE REDUCTION TEMPERATURE WHILE MAINTAINING SAID SOLUTION IN CONTACT WITH SAID OXIDE FILM THEREBY DEPOSITING SAID METAL CATALYST MATERIAL SUBSTANTIALLY UNIFORMLY ON SAID OXIDE FILM ON THE INNER SURFACE OF SAID METAL TUBULAR SUPPORT.
Claim 2
Independent Claim
95 words
A METHOD FOR PREPARING A SUPPORTED CATALYST WHICH COMPRISES PRODUCING BY ANODIC OXIDATION AN ADHERENT OXIDE FILM OF AT LEAST 0.5 MIL THICKNESS INTEGRAL WITH THE INNER WALL SURFACE OF A METAL TUBULAR SUPPORT AS A CONDUIT FOR REACTANTS UNDERGOING CATALYSIS, FORMING A SOLUTION OF A SOLUBLE COMPOUND OF A METAL CATALYST MATERIAL, AND PRESSURING SAID SOLUTION WITH HYDROGEN AT AN EFFECTIVE REDUCTION TEMPERATURE WHILE MAINTAINING SAID SOLUTION IN CONTACT WITH SAID OXIDE FILM THEREBY DEPOSITING SAID METAL CATALYST MATERIAL SUBSTANTIALLY UNIFORMLY ON SAID OXIDE FILM ON THE INNER SURFACE OF SAID METAL TUBULAR SUPPORT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |