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
CA856275A
Inventor
Cheng Chao-Shing
E. Evans Francis
C. Boye Frederick
A. Friedman Cecil
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.)
Allied Corp
Original Assignee
Allied Chemical Corp
Publication date
Application grantedgrantedCritical
Publication of CA856275ApublicationCriticalpatent/CA856275A/en