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
CA827652A
Inventor
H. Spoon Bill
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.)
Phelps Dodge Refining Corp
Original Assignee
Phelps Dodge Refining Corp
Publication date
Application grantedgrantedCritical
Publication of CA827652ApublicationCriticalpatent/CA827652A/en