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
CA591300A
Inventor
D. Murray Humphrey
Penn Royer 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.)
Ozalid Co Ltd
Original Assignee
Ozalid Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA591300ApublicationCriticalpatent/CA591300A/en