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.)
Filtrona Richmond Inc
Original Assignee
American Filtrona 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
Priority claimed from US00261835Aexternal-prioritypatent/US3805801A/en
Application filed by American Filtrona CorpfiledCriticalAmerican Filtrona Corp
Application grantedgrantedCritical
Publication of CA980202ApublicationCriticalpatent/CA980202A/en