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 - Lifetime
Application number
CA 74820
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.)
3M Canada Co
Original Assignee
3M Canada Co
Publication date
Priority to CA 74820priorityCriticalpatent/CA74820S/en
Application grantedgrantedCritical
Publication of CA74820SpublicationCriticalpatent/CA74820S/en