US2765283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supported silver surface catalyst and process of producing same
Assignee: Jefferson Chemical Co Inc
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Filing: 1951-10-01
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Granted: 1956-10-02
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Expires: 1971-10-01
Abstract
No abstract record available.
Inventors
- 👤 Donald K Sacken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:08
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN A PROCESS FOR PRODUCING A SUPPORTED SILVER SURFACE CATALYST FOR CATALYZING THE OXIDATION OF OLEFINS TO OLEFIN OXIDES, THE STEPS WHICH COMPRISES WASHING THE SUPPORT PARTICLES WITH AN AQUEOUS SOLUTION CONTAINING FROM 0.001% TO 0.05% BY WEIGHT OF AN INORGANIC CHLORINE CONTAINING COMPOUND TO DEPOSIT THEREON FROM 0.0001% TO 0.2% BY WEIGHT OF SAID INORGANIC CHLORINE CONTAINING CONPOUND BASED ON THE WEIGHT OF THE SUPPORT PARTICLES AND THEREAFTER DEPOSITING SILVER OXIDE ON THE THUS WASHED SUPPORT PARTICLES.
Claim 2
Dependent Claim
78 words
IN A PROCESS FOR PRODUCING A SUPPORTED SILVER SURFACE CATALYST FOR CATALYZING THE OXIDATION OF OLEFINS TO OLEFIN OXIDES, THE STEPS WHICH COMPRISES WASHING THE SUPPORT PARTICLES WITH AN AQUEOUS SOLUTION CONTAINING FROM 0.001% TO 0.05% BY WEIGHT OF AN INORGANIC CHLORINE CONTAINING COMPOUND TO DEPOSIT THEREON FROM 0.0001% TO 0.2% BY WEIGHT OF SAID INORGANIC CHLORINE CONTAINING CONPOUND BASED ON THE WEIGHT OF THE SUPPORT PARTICLES AND THEREAFTER DEPOSITING SILVER OXIDE ON THE THUS WASHED SUPPORT PARTICLES.
References Cited (Backward Citations)
US2178454A
Cited
US2156341A
Cited
US2246900A
Cited
US2125333A
Cited
US2424085A
Cited
US2463228A
Cited
US2454227A
Cited
US2582254A
Cited
US2615900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |