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Expired European patentEurope

Apparatus for the separation of a liquid into two fractions

EP 0195461 B1 · Applicant: DOW DANMARK A/S

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Filed May 19, 1982 and granted January 30, 1991. A European patent lasts at most 20 years from filing, so its term ended May 19, 2002.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by November 19, 2007.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledMay 19, 1982
PublishedSeptember 24, 1986
GrantedJanuary 30, 1991
Term endedMay 19, 2002
Application numberEP 86105511
Classification (CPC)B01D63/084

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedMay 19, 1982PublishedSep 24, 1986Patent grantedJan 30, 1991Term endedMay 19, 2002

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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