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
CA637028A
Inventor
G. Haworth Russell
M. Dale Eugene
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.)
Potash Company of America
Original Assignee
Eugene M Dale
Potash Company of America
Publication date
Application grantedgrantedCritical
Publication of CA637028ApublicationCriticalpatent/CA637028A/en