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
CA668170A
Inventor
I. Wall Wendell
C. Cowley Calvin
A. Hamilton 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.)
Don Baxter Inc
Original Assignee
Don Baxter Inc
Publication date
Application grantedgrantedCritical
Publication of CA668170ApublicationCriticalpatent/CA668170A/en