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Expired European patentEurope

Method and apparatus for making a filter from a material for a filter element

EP 0245699 B1 · Applicant: NIPPONDENSO CO., LTD.

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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 April 28, 1987 and granted January 20, 1993. A European patent lasts at most 20 years from filing, so its term ended April 28, 2007.
  • 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 October 28, 2012.
  • 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.
FiledApril 28, 1987
PublishedNovember 19, 1987
GrantedJanuary 20, 1993
Term endedApril 28, 2007
Application numberEP 87106187
Classification (CPC)B31D5/0082

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedApril 28, 1987PublishedNov 19, 1987Patent grantedJan 20, 1993Term endedApril 28, 2007

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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