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
Priority claimed from PCT/US1989/003713external-prioritypatent/WO1990002486A1/en
Application filed by Du PontfiledCriticalDu Pont
Publication of NO910825LpublicationCriticalpatent/NO910825L/en
Publication of NO910825D0publicationCriticalpatent/NO910825D0/en