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 Du PontfiledCriticalDu Pont
Priority claimed from EP87310079Aexternal-prioritypatent/EP0268441B1/en
Application grantedgrantedCritical
Publication of ATE101757T1publicationCriticalpatent/ATE101757T1/en