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 US06/766,615external-prioritypatent/US4659338A/en
Priority claimed from US06/863,623external-prioritypatent/US4690687A/en
Application filed by Lubrizol CorpfiledCriticalLubrizol Corp
Publication of NO952019D0publicationCriticalpatent/NO952019D0/en
Publication of NO952019LpublicationCriticalpatent/NO952019L/en