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 US05/588,814external-prioritypatent/US3975691A/en
Application filed by Du PontfiledCriticalDu Pont
Publication of IE42864LpublicationCriticalpatent/IE42864L/en
Publication of IE42864B1publicationCriticalpatent/IE42864B1/en