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.)
Westinghouse Air Brake Technologies Corp
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from US09/507,227external-prioritypatent/US6848754B2/en
Application filed by IndividualfiledCriticalIndividual
Publication of CA2455138A1publicationCriticalpatent/CA2455138A1/fr
Application grantedgrantedCritical
Publication of CA2455138CpublicationCriticalpatent/CA2455138C/fr