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
Inventor
K. Smith John
W. Wilson Matthew
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.)
BLAINE BATES
FRANK R HOLTZMAN
Original Assignee
BLAINE BATES
FRANK R HOLTZMAN
Publication date
Application grantedgrantedCritical
Publication of CA618177ApublicationCriticalpatent/CA618177A/en