US2851471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of castor oil
Assignee: Ethicon Inc
•
Filing: 1954-07-13
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Granted: 1958-09-09
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Expires: 1974-07-13
Abstract
No abstract record available.
Inventors
- 👤 Nichols Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:10
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR THE OXIDATION OF CASTOR OIL COMPRISING HEATING CASTOR OIL IN SOLUTION IN AN INERT ORGANIC SOLVENT AND A KETONE, SELECTED FROM THE GROUP WHICH CONSISTS OF LOW MOLECULAR WEIGHT ALIPHATIC AND ACYCLIC KETONES, WITH A COMPOUND OF THE CLASS OF LOW MOLECULAR WEIGHT ALUMINUM SECONDARY AND TERTIARY ALKOXIDES, FOR A PERIOD OF TIME OF NOT LONGER THAN ABOUT 15 MINUTES AND AT A TEMPERATURE NOT SUBSTANTIALLY ABOVE 115*C. TO PROVIDE OXIDIZED CASTOR OIL IN WHICH THE PREDOMINANT COMPONENTS ARE GLYCERIDES OF 12-KETO-OLEIC ACID.
Claim 2
Dependent Claim
86 words
A PROCESS FOR THE OXIDATION OF CASTOR OIL COMPRISING HEATING CASTOR OIL IN SOLUTION IN AN INERT ORGANIC SOLVENT AND A KETONE, SELECTED FROM THE GROUP WHICH CONSISTS OF LOW MOLECULAR WEIGHT ALIPHATIC AND ACYCLIC KETONES, WITH A COMPOUND OF THE CLASS OF LOW MOLECULAR WEIGHT ALUMINUM SECONDARY AND TERTIARY ALKOXIDES, FOR A PERIOD OF TIME OF NOT LONGER THAN ABOUT 15 MINUTES AND AT A TEMPERATURE NOT SUBSTANTIALLY ABOVE 115*C. TO PROVIDE OXIDIZED CASTOR OIL IN WHICH THE PREDOMINANT COMPONENTS ARE GLYCERIDES OF 12-KETO-OLEIC ACID.
References Cited (Backward Citations)
US2623888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |