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Expired European patentEurope

Process for reducing the PCDD/PCDF-emissions in waste gas of incinerators

EP 0373312 B1 · Applicant: KERNFORSCHUNGSZENTRUM KARLSRUHE 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 October 6, 1989 and granted September 30, 1992. A European patent lasts at most 20 years from filing, so its term ended October 6, 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 April 6, 2015.
  • 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.
FiledOctober 6, 1989
PublishedJune 20, 1990
GrantedSeptember 30, 1992
Term endedOctober 6, 2009
Application numberEP 89118568
Classification (CPC)B01D53/70

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedOct 6, 1989PublishedJune 20, 1990Patent grantedSep 30, 1992Term endedOct 6, 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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