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
CA669996A
Inventor
R. Kuzell Charles
G. Fowler Morris
John H. Davis, Jr.
Macdougall Irvine
Klein Leonard
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.)
Freeport Minerals Corp
Original Assignee
Phelps Dodge Corp
Publication date
Application grantedgrantedCritical
Publication of CA669996ApublicationCriticalpatent/CA669996A/en