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
CA237,863A
Inventor
Cullen P. Hart
John J. Campbell
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor 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 CA177,005Aexternal-prioritypatent/CA990746A/en
Application filed by Caterpillar Tractor CofiledCriticalCaterpillar Tractor Co
Priority to CA237,863ApriorityCriticalpatent/CA993008A/en
Application grantedgrantedCritical
Publication of CA993008ApublicationCriticalpatent/CA993008A/en