US2794053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic dehydrogenation of secondary alcohols to ketones
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1954-12-22
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Granted: 1957-05-28
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Expires: 1974-12-22
Abstract
No abstract record available.
Inventors
- 👤 Royal K Altreuter
- 👤 William F Segelken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:31
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/002; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PROCESS FOR CONVERTING SECONDARY ALIPHATIC ALCOHOLS TO KETONES WHICH COMPRISES PASSING THE ALCOHOL UNDER CONVERSION CONDITIONS OF TEMPERATURE AND PRESSURE OVER A CATALYST CONDITIONS OF TEMPERATURE AND PRESSURE ON LUMPS OF CALCINED COKE HAVING A TOTAL ASH CONTENT OF NO MORE THAN 1.5%.
Claim 2
Dependent Claim
44 words
A PROCESS FOR CONVERTING SECONDARY ALIPHATIC ALCOHOLS TO KETONES WHICH COMPRISES PASSING THE ALCOHOL UNDER CONVERSION CONDITIONS OF TEMPERATURE AND PRESSURE OVER A CATALYST CONDITIONS OF TEMPERATURE AND PRESSURE ON LUMPS OF CALCINED COKE HAVING A TOTAL ASH CONTENT OF NO MORE THAN 1.5%.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |