Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ashland Oil IncfiledCriticalAshland Oil Inc
Priority claimed from EP84105214Aexternal-prioritypatent/EP0163748B1/en
Application grantedgrantedCritical
Publication of ATE33492T1publicationCriticalpatent/ATE33492T1/en