Patent US2495904A successfully refreshed from Google Patents.
US2495904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of aromatic keto alcohols
Assignee: Universal Oil Products Co
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Filing: 1946-03-29
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Granted: 1950-01-31
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Expires: 1966-03-29
Abstract
No abstract record available.
Inventors
- 👤 Pines Herman
- 👤 Kvetinskas Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:38
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/76; C07C49/82; C07C45/00; C07C45/61; C07C45/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A PROCESS FOR PRODUCING AN AROMATIC KETO ALCOHOL WHICH COMPRISES REACTING OXYGEN AND AN ALKYL AROMATIC KETONE CONTAINING A SECONDARY ALKYL GROUP AT A TEMPERATURE OF FROM ABOUT 50* TO ABOUT 250*C. IN THE PRESENCE OF AN OXIDATION CATALYST COMPRISING AS ITS ESSENTIAL ACTIVE INGREDIENT A METAL HAVING AN ATOMIC NUMBER OF FROM 23 TO 30, INCLUSIVE.
Claim 2
Dependent Claim
57 words
A PROCESS FOR PRODUCING AN AROMATIC KETO ALCOHOL WHICH COMPRISES REACTING OXYGEN AND AN ALKYL AROMATIC KETONE CONTAINING A SECONDARY ALKYL GROUP AT A TEMPERATURE OF FROM ABOUT 50* TO ABOUT 250*C. IN THE PRESENCE OF AN OXIDATION CATALYST COMPRISING AS ITS ESSENTIAL ACTIVE INGREDIENT A METAL HAVING AN ATOMIC NUMBER OF FROM 23 TO 30, INCLUSIVE.
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) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |