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.)
National Petro-Chemicals Corp
Original Assignee
National Petro-Chemicals Corp
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 CA180,770Aexternal-prioritypatent/CA991902A/en
Application filed by National Petro-Chemicals CorpfiledCriticalNational Petro-Chemicals Corp
Priority to CA225,077ApriorityCriticalpatent/CA1005271A/en
Application grantedgrantedCritical
Publication of CA1005271ApublicationCriticalpatent/CA1005271A/en