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
Inventor
D. Boughton John
H. Sloboda Meczyslaw
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 PLC
Original Assignee
John D Boughton
Meczyslaw H Sloboda
Johnson Matthey PLC
Publication date
Application grantedgrantedCritical
Publication of CA905710ApublicationCriticalpatent/CA905710A/en