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
CA630872A
Inventor
Gilbert Geoffrey
L. Prendergast William
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.)
Chavannes Industrial Synthetics Inc
Original Assignee
Chavannes Industrial Synthetics Inc
Publication date
Application grantedgrantedCritical
Publication of CA630872ApublicationCriticalpatent/CA630872A/en