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Catalyst for reducing the nitrogen oxide content in flue gases

EP 0204064 A2 · Applicant: SÜD-CHEMIE AG

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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 January 11, 1986 and never granted as a European patent. Had it been granted, its 20-year term would have ended January 11, 2006.
  • 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 July 11, 2011.
  • 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.
FiledJanuary 11, 1986
PublishedDecember 10, 1986
GrantedNever granted
Term endedJanuary 11, 2006
Application numberEP 86100303
Classification (CPC)B01J23/30 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedJan 11, 1986PublishedDec 10, 1986Term endedJan 11, 2006

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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