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
CA218,115A
Inventor
Charles F. Hofmann
Donald J. Martahus
Chester W. Upton (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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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
Application filed by Westinghouse Electric CorpfiledCriticalWestinghouse Electric Corp
Application grantedgrantedCritical
Publication of CA1021049ApublicationCriticalpatent/CA1021049A/en