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.)
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.)
Akzo Nobel Salt Inc
Original Assignee
Robert G Sickly
Thomas F Courthope
International Salt Co
Publication date
Application grantedgrantedCritical
Publication of CA520012ApublicationCriticalpatent/CA520012A/en