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.)
CIBA Ltd
Original Assignee
CIBA Ltd
Hans Heusser
Leopold Ruzicka
Publication date
Priority claimed from CA573825Texternal-priority
Application grantedgrantedCritical
Publication of CA573825ApublicationCriticalpatent/CA573825A/en