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
CA743987A
Inventor
L. Zirkle Charles
Kaiser Carl
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.)
SmithKline Beecham Inter American Corp
Original Assignee
Smith Kline and French Inter American Corp
Publication date
Application grantedgrantedCritical
Publication of CA743987ApublicationCriticalpatent/CA743987A/en