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
CA191,366A
Inventor
Clyde E. Nolan (Jr.)
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.)
Brown and Root Inc
Original Assignee
Brown and Root Inc
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 CA132,352Aexternal-prioritypatent/CA954040A/en
Application filed by Brown and Root IncfiledCriticalBrown and Root Inc
Priority to CA191,366ApriorityCriticalpatent/CA958329A/en
Application grantedgrantedCritical
Publication of CA958329ApublicationCriticalpatent/CA958329A/en