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.)
Expired
Application number
CA249,610A
Inventor
Norman N. Aylon
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.)
General Concrete of Canada Ltd
Original Assignee
General Concrete of Canada Ltd
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 CA195,838Aexternal-prioritypatent/CA997167A/en
Application filed by General Concrete of Canada LtdfiledCriticalGeneral Concrete of Canada Ltd
Priority to CA249,610ApriorityCriticalpatent/CA1003357A/en
Application grantedgrantedCritical
Publication of CA1003357ApublicationCriticalpatent/CA1003357A/en