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Expired European patentEurope

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EP 0190844 B1 · Applicant: SCHERING AGROCHEMICALS LIMITED

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Overview

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

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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 22, 1986 and granted October 23, 1991. A European patent lasts at most 20 years from filing, so its term ended January 22, 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 22, 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 22, 1986
PublishedAugust 13, 1986
GrantedOctober 23, 1991
Term endedJanuary 22, 2006
Application numberEP 86300417
Classification (CPC)A01N25/006

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedJan 22, 1986PublishedAug 13, 1986Patent grantedOct 23, 1991Term endedJan 22, 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.