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
AU14562/66A
Inventor
William Cooper 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.)
Columbian Carbon Co
Original Assignee
Columbian Carbon Co
Filing date
Publication date
Application filed by Columbian Carbon CofiledCriticalColumbian Carbon Co
Publication of AU1456266ApublicationCriticalpatent/AU1456266A/en