Patent Yard Sign in
European application, no grantEurope

Device and method for the plasma-assisted purification of exhaust gas and treatment of exhaust air

EP 1663454 A1 · Applicant: Institut für Niedertemperatur-Plasmaphysik e.V.

EPO PDF

Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed September 20, 2004 and never granted as a European patent. Had it been granted, its 20-year term would have ended September 20, 2024.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledSeptember 20, 2004
PublishedJune 7, 2006
GrantedNever granted
Term endedSeptember 20, 2024
Application numberEP 04786969
Classification (CPC)B01D53/32 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedSep 20, 2004PublishedJune 7, 2006Term endedSep 20, 2024

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.