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
CA866768A
Inventor
H. Pinchbeck Peter
Markham Harry
P. Gaynor Phillippe
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.)
United Coke and Chemical Co
Original Assignee
United Coke and Chemical Co
Publication date
Application grantedgrantedCritical
Publication of CA866768ApublicationCriticalpatent/CA866768A/en