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
CA820366A
Inventor
W. Chow Alfred
L. Dunn George
Original Assignee
Smith Kline and French Inter American Corp
Publication date
Application grantedgrantedCritical
Publication of CA820366ApublicationCriticalpatent/CA820366A/en