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
CA601689A
Inventor
J. Finehout Lyman
L. Ebershoff Kenneth
H. Overman James
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
James H Overman
Kenneth L Ebershoff
Lyman J Finehout
Johnson Matthey and Mallory Ltd
Publication date
Application grantedgrantedCritical
Publication of CA601689ApublicationCriticalpatent/CA601689A/en