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 EP88302995Aexternal-prioritypatent/EP0286346B1/de
Application grantedgrantedCritical
Publication of ATE103903T1publicationCriticalpatent/ATE103903T1/de