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.)
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
Application grantedgrantedCritical
Publication of AU3708758ApublicationCriticalpatent/AU3708758A/en
Publication of AU223088B2publicationCriticalpatent/AU223088B2/en