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.)
Individual
Original Assignee
Individual
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Publication date
Priority claimed from US05/698,951external-prioritypatent/US4052835A/en
Application filed by IndividualfiledCriticalIndividual
Priority to CA315,226ApriorityCriticalpatent/CA1082146A/fr
Application grantedgrantedCritical
Publication of CA1082146ApublicationCriticalpatent/CA1082146A/fr