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
A. Bourne Alan
S. Darling Alan
C. Chaston Jack
C. Bond Geoffrey
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
Alan A Bourne
Alan S Darling
Geoffrey C Bond
Jack C Chaston
Johnson Matthey PLC
Publication date
Application grantedgrantedCritical
Publication of CA881458ApublicationCriticalpatent/CA881458A/en