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
CA804635A
Inventor
Douglas S. Alexander
Harvey Minnis
Brian H. Oliver
John H. Rolston
Original Assignee
Polysar Ltd
Publication date
Application grantedgrantedCritical
Publication of CA804635ApublicationCriticalpatent/CA804635A/en