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.)
PPG Industries Inc
Original Assignee
PPG Industries 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
Priority claimed from US05/618,582external-prioritypatent/US4065415A/en
Priority claimed from US05/618,584external-prioritypatent/US4065416A/en
Application filed by PPG Industries IncfiledCriticalPPG Industries Inc
Application grantedgrantedCritical
Publication of AU490216B2publicationCriticalpatent/AU490216B2/en
Publication of AU1744776ApublicationCriticalpatent/AU1744776A/en