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EP 0869840 B1 · Applicant: FILTERWERK MANN & HUMMEL GMBH

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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 December 17, 1996 and granted August 18, 1999. A European patent lasts at most 20 years from filing, so its term ended December 17, 2016.
  • 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 June 17, 2022.
  • 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.
FiledDecember 17, 1996
PublishedOctober 14, 1998
GrantedAugust 18, 1999
Term endedDecember 17, 2016
Application numberEP 96943981
Classification (CPC)B01D53/0423

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedDec 17, 1996PublishedOct 14, 1998Patent grantedAug 18, 1999Term endedDec 17, 2016

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.