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.)
Southern Clay Products Inc
Original Assignee
Southern Clay Products Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Southern Clay Products IncfiledCriticalSouthern Clay Products Inc
Priority claimed from EP19850307548external-prioritypatent/EP0220346B2/en
Application grantedgrantedCritical
Publication of DE3574959D1publicationCriticalpatent/DE3574959D1/en