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
CA237,050A
Inventor
Ray A. Woodriff
Daniel T. Woodriff
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.)
Individual
Original Assignee
Individual
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 CA171,294Aexternal-prioritypatent/CA990969A/en
Application filed by IndividualfiledCriticalIndividual
Priority to CA237,050ApriorityCriticalpatent/CA990531A/en
Application grantedgrantedCritical
Publication of CA990531ApublicationCriticalpatent/CA990531A/en