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.)
International Paper Co
Original Assignee
International Paper Co
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 US05/634,908external-prioritypatent/US4034751A/en
Priority claimed from US05/735,671external-prioritypatent/US4175557A/en
Priority claimed from CA364,763Aexternal-prioritypatent/CA1125609A/fr
Application filed by International Paper CofiledCriticalInternational Paper Co
Priority to CA000395263ApriorityCriticalpatent/CA1140826A/fr
Application grantedgrantedCritical
Publication of CA1140826ApublicationCriticalpatent/CA1140826A/fr