Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pfizer Inc
Original Assignee
Pfizer Inc
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 US292645Aexternal-prioritypatent/US3862191A/en
Application filed by Pfizer IncfiledCriticalPfizer Inc
Priority to CA256,449ApriorityCriticalpatent/CA1021782A/en
Application grantedgrantedCritical
Publication of CA1021782ApublicationCriticalpatent/CA1021782A/en