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.)
Expired
Application number
CA685413A
Inventor
H. Ottenheym Johannes
W. F. Van ' T Wout Johan
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
Publication date
Application grantedgrantedCritical
Publication of CA685413ApublicationCriticalpatent/CA685413A/en