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
CA260,846A
Inventor
Harvey Levine
Karl H. Bergmann
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.)
MELITTA
Original Assignee
MELITTA
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 US05/621,390external-prioritypatent/US3987717A/en
Application filed by MELITTAfiledCriticalMELITTA
Application grantedgrantedCritical
Publication of CA1016583ApublicationCriticalpatent/CA1016583A/en