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 US07/502,487external-prioritypatent/US5094768A/en
Application filed by Lubrizol CorpfiledCriticalLubrizol Corp
Publication of NO914662D0publicationCriticalpatent/NO914662D0/en
Publication of NO914662LpublicationCriticalpatent/NO914662L/en