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Expired European patentEurope

Method for reducing emissions from industrial exhaust gases and industrial discharge air

EP 0243368 B1 · Applicant: ELIN-UNION Aktiengesellschaft für elektrische Industrie

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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 27, 1986 and granted October 18, 1989. A European patent lasts at most 20 years from filing, so its term ended January 27, 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 27, 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 27, 1986
PublishedNovember 4, 1987
GrantedOctober 18, 1989
Term endedJanuary 27, 2006
Application numberEP 86901005
Classification (CPC)B01D53/60

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedJan 27, 1986PublishedNov 4, 1987Patent grantedOct 18, 1989Term endedJan 27, 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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