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
CA790490A
Inventor
J. Deery Hugh
E. Jordan Merrill
Hagopian Erivan
R. Williams Frank
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.)
Cabot Corp
Original Assignee
Cabot Corp
Publication date
Application grantedgrantedCritical
Publication of CA790490ApublicationCriticalpatent/CA790490A/en