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 US06/430,369external-prioritypatent/US4461630A/en
Priority claimed from IN452/CAL/84Aexternal-prioritypatent/IN162784B/en
Application filed by Union Carbide CorpfiledCriticalUnion Carbide Corp
Priority to IN31/CAL/88ApriorityCriticalpatent/IN165925B/en
Publication of IN165925BpublicationCriticalpatent/IN165925B/en