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.)
COLUMBIA-GREAT LAKES CORP
Original Assignee
COLUMBIA-GREAT LAKES 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
Application filed by COLUMBIA-GREAT LAKES CORPfiledCriticalCOLUMBIA-GREAT LAKES CORP
Priority to CA139,807ApriorityCriticalpatent/CA967537A/en
Application grantedgrantedCritical
Publication of CA967537ApublicationCriticalpatent/CA967537A/en