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
CA 20851
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.)
ROY H ZINKIL
THOMAS P NEWMAN
Original Assignee
ROY H ZINKIL
THOMAS P NEWMAN
Publication date
Priority to CA 20851priorityCriticalpatent/CA20851S/en
Application grantedgrantedCritical
Publication of CA20851SpublicationCriticalpatent/CA20851S/en