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
CA703535A
Inventor
E. Barton Donald
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.)
American Seal Kap Corp of Delaware
Original Assignee
American Seal Kap Corp of Delaware
Publication date
Application grantedgrantedCritical
Publication of CA703535ApublicationCriticalpatent/CA703535A/en