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
H. Kirkpatrick Willard
L. Seale Virgil
B. Love Joe
Walker Alice
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.)
Visco Products Co
Original Assignee
Visco Products Co
Publication date
Application grantedgrantedCritical
Publication of CA606320ApublicationCriticalpatent/CA606320A/en