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
CA742028A
Inventor
B. Griffith Robert
R. Johnson Robert
D. Quinn Alton
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.)
British American Tobacco Investments Ltd
Original Assignee
British American Tobacco Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA742028ApublicationCriticalpatent/CA742028A/en