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Expired European patentEurope

Herbicidal(((1,3,5-triazine-2-yl)aminocarbonyl)aminosulfonyl)benzoeacidesters, method for their preparation and their use

EP 0476403 B1 · Applicant: BASF Aktiengesellschaft

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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 August 31, 1991 and granted February 28, 1996. A European patent lasts at most 20 years from filing, so its term ended August 31, 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 March 3, 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.
FiledAugust 31, 1991
PublishedMarch 25, 1992
GrantedFebruary 28, 1996
Term endedAugust 31, 2011
Application numberEP 91114705
Classification (CPC)C07D521/00 +1 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedAug 31, 1991PublishedMarch 25, 1992Patent grantedFeb 28, 1996Term endedAug 31, 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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