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 US06/856,928external-prioritypatent/US4719218A/en
Application filed by Smithkline Beckman CorpfiledCriticalSmithkline Beckman Corp
Priority claimed from NZ218570Aexternal-prioritypatent/NZ218570A/en
Publication of NZ227767ApublicationCriticalpatent/NZ227767A/en