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
CA769842A
Inventor
C. Bue Richard
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.)
Sico Inc
Original Assignee
Sico Inc
Publication date
Application grantedgrantedCritical
Publication of CA769842ApublicationCriticalpatent/CA769842A/en