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
CA617416A
Inventor
K. Howe Brian
Andrus Stanley
N. Davies Geoffrey
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.)
Evonik LCL Ltd
Original Assignee
Brian K Howe
Geoffrey N Davies
Laporte Chemicals Ltd
Publication date
Application grantedgrantedCritical
Publication of CA617416ApublicationCriticalpatent/CA617416A/en