Patent JPS6027074A successfully refreshed from Google Patents.
US2939883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrogenation of alcohols to
Assignee: —
•
Filing: —
•
Granted: 1960-06-07
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Expires: 1977-06-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:42
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; B; B01; B01J; B01J23/00; B01J23/002; B01J37/00; B01J37/08; C07C45/002; C07C45/27; C07C45/32; C07C45/37; C07C45/38; C07C47/00; C07C47/02; C07C47/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS FOR THE CATALYTIC DEHYDROGENATION OF AN ALCOHOL TO ITS CORRESPONDING ALDEHYDE WHICH COMPRISES DEHYDROGENATING AN ALIPHATIC ALCOHOL AT A TEMPERATURE BETWEEN 550*C. AND 750*C. IN THE PRESENCE OF A SILVER CATALYST PROMOTES WITH FROM ABOUT 0.2% TO ABOUT 10% BY WEIGHT OF COPPER, AND AFTER THE ACTIVITY OF THE SEHYDROGENATION HAS DECREASED TO AN UNSATISFACTORY LEVEL, REACTIVATING THE CATALYST BY HEATING IN A OXYGEN-CONTAINING GAS.
Claim 2
Dependent Claim
67 words
A PROCESS FOR THE CATALYTIC DEHYDROGENATION OF AN ALCOHOL TO ITS CORRESPONDING ALDEHYDE WHICH COMPRISES DEHYDROGENATING AN ALIPHATIC ALCOHOL AT A TEMPERATURE BETWEEN 550*C. AND 750*C. IN THE PRESENCE OF A SILVER CATALYST PROMOTES WITH FROM ABOUT 0.2% TO ABOUT 10% BY WEIGHT OF COPPER, AND AFTER THE ACTIVITY OF THE SEHYDROGENATION HAS DECREASED TO AN UNSATISFACTORY LEVEL, REACTIVATING THE CATALYST BY HEATING IN A OXYGEN-CONTAINING GAS.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |