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.)
Westvaco Corp
Original Assignee
Westvaco Corp
Filing date
Publication date
Priority claimed from US05/569,986external-prioritypatent/US3960582A/en
Priority claimed from US05/570,014external-prioritypatent/US3959004A/en
Application filed by Westvaco CorpfiledCriticalWestvaco Corp
Application grantedgrantedCritical
Publication of AU487049B2publicationCriticalpatent/AU487049B2/en
Publication of AU1258976ApublicationCriticalpatent/AU1258976A/en