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
CA883541A
Inventor
Alan R. Pfaff, Jr.
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.)
BERNAL Inc
Original Assignee
BERNAL Inc
Publication date
Application grantedgrantedCritical
Publication of CA883541ApublicationCriticalpatent/CA883541A/en