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
CA757925A
Inventor
B. West John
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.)
Maryland Cup Corp
Original Assignee
Maryland Cup Corp
Publication date
Application grantedgrantedCritical
Publication of CA757925ApublicationCriticalpatent/CA757925A/en