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Expired European patentEurope

Process and device for the removal of suspended matter from gases

EP 0096149 B1 · Applicant: Hugo Petersen Ges. für verfahrenstechn. Anlagenbau mbH & Co KG

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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.

Why it's free to use

  • Filed January 20, 1983 and granted November 12, 1986. A European patent lasts at most 20 years from filing, so its term ended January 20, 2003.
  • 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 20, 2008.
  • 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 20, 1983
PublishedDecember 21, 1983
GrantedNovember 12, 1986
Term endedJanuary 20, 2003
Application numberEP 83100466
Classification (CPC)B01D47/18

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedJan 20, 1983PublishedDec 21, 1983Patent grantedNov 12, 1986Term endedJan 20, 2003

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