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
CA254,495A
Inventor
Godefridus M. Swinkels
Robert A. Furber
Edward F.G. Milner
Roman M. Genik-Sas-Berezowsky
Charles R. Kirby
Original Assignee
Teck Metals Ltd
Sherritt Gordon Mines Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CA182,368Aexternal-prioritypatent/CA997565A/en
Application filed by Teck Metals Ltd, Sherritt Gordon Mines LtdfiledCriticalTeck Metals Ltd
Priority to CA254,495ApriorityCriticalpatent/CA1009043A/en
Application grantedgrantedCritical
Publication of CA1009043ApublicationCriticalpatent/CA1009043A/en