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European application, no grantEurope

Diesel-soot filter with additional device for reducing oxides of nitrogen and/or oxidizing carbon monoxide

EP 0468955 A1 · Applicant: Emitec Gesellschaft für Emissionstechnologie mbH

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Overview

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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 17, 1989 and never granted as a European patent. Had it been granted, its 20-year term would have ended April 17, 2009.
  • 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 17, 2014.
  • 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 17, 1989
PublishedFebruary 5, 1992
GrantedNever granted
Term endedApril 17, 2009
Application numberEP 89904535
Classification (CPC)F01N3/023 +2 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedApril 17, 1989PublishedFeb 5, 1992Term endedApril 17, 2009

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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