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.)
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.)
Johnson Matthey Ltd
Original Assignee
Johnson Matthey and Mallory 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
Application filed by Johnson Matthey and Mallory LtdfiledCriticalJohnson Matthey and Mallory Ltd
Priority to CA108,723ApriorityCriticalpatent/CA954725A/en
Application grantedgrantedCritical
Publication of CA954725ApublicationCriticalpatent/CA954725A/en