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Expired European patentEurope

Process for the manufacture of pesticidal 1-(alkoxymethyl)pyrrole compounds

EP 0491136 B1 · Applicant: AMERICAN CYANAMID COMPANY

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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 October 22, 1991 and granted September 18, 1996. A European patent lasts at most 20 years from filing, so its term ended October 22, 2011.
  • 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 April 22, 2017.
  • 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.
FiledOctober 22, 1991
PublishedJune 24, 1992
GrantedSeptember 18, 1996
Term endedOctober 22, 2011
Application numberEP 91117962
Classification (CPC)C07D207/34

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedOct 22, 1991PublishedJune 24, 1992Patent grantedSep 18, 1996Term endedOct 22, 2011

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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