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/US1997/020144external-prioritypatent/WO1998023988A1/en
Application filed by 3M Innovative Properties CofiledCritical3M Innovative Properties Co
Publication of HK1026481A1publicationCriticalpatent/HK1026481A1/en