US2634295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for catalytic dehydrogenation of alcohols to carbonyl compounds
Assignee: Celanese Corp
•
Filing: 1949-07-23
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Granted: 1953-04-07
•
Expires: 1969-07-23
Abstract
No abstract record available.
Inventors
- 👤 Alexander F Maclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:34
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
PROCESS FOR THE DEHYDROGENATION OF ALCOHOLS TO CARBONYL COMPOUNDS, WHICH COMPRISES BRINGING VAPORS OF THE ALCOHOL TO THE DEHYDROGENATED INTO CONTACT WITH A DEHYDROGENATION CATALYST COMPRISING FINELY-DIVIDED PARTICLES OF INACTIVE ALUMINA HAVING A PARTICLE SIZE OF 80 TO 325 MESH AND HAVING A MIXTURE OF BARIUM OXIDE, CHROMIUM OXIDE AND CUPRIC OXIDE ON THE SURFACES THEREOF WHILE MAINTAINING THE CATALYST PARTICLES IN A FLUIDIZED STATE.
Claim 2
Dependent Claim
65 words
PROCESS FOR THE DEHYDROGENATION OF ALCOHOLS TO CARBONYL COMPOUNDS, WHICH COMPRISES BRINGING VAPORS OF THE ALCOHOL TO THE DEHYDROGENATED INTO CONTACT WITH A DEHYDROGENATION CATALYST COMPRISING FINELY-DIVIDED PARTICLES OF INACTIVE ALUMINA HAVING A PARTICLE SIZE OF 80 TO 325 MESH AND HAVING A MIXTURE OF BARIUM OXIDE, CHROMIUM OXIDE AND CUPRIC OXIDE ON THE SURFACES THEREOF WHILE MAINTAINING THE CATALYST PARTICLES IN A FLUIDIZED STATE.
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US1895516A
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US2218457A
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US2321006A
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US2339346A
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US2419342A
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US2516958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |