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 US07/100,685external-prioritypatent/US4808729A/en
Priority claimed from US07/241,265external-prioritypatent/US4923891A/en
Application filed by Searle & CofiledCriticalSearle & Co
Application grantedgrantedCritical
Publication of ATE86250T1publicationCriticalpatent/ATE86250T1/de