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 US06/308,746external-prioritypatent/US4376204A/en
Priority claimed from IN719/DEL/82Aexternal-prioritypatent/IN159273B/en
Application filed by PfizerfiledCriticalPfizer
Priority to IN254/DEL/85ApriorityCriticalpatent/IN161488B/en
Publication of IN161488BpublicationCriticalpatent/IN161488B/en