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Expired European patentEurope

N-dodecyl heterocyclic compounds useful as industrial microbicides and preservatives

EP 0697813 B1 · Applicant: BUCKMAN LABORATORIES INTERNATIONAL, INC.

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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 May 14, 1993 and granted September 17, 1997. A European patent lasts at most 20 years from filing, so its term ended May 14, 2013.
  • 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 November 14, 2018.
  • 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.
FiledMay 14, 1993
PublishedFebruary 28, 1996
GrantedSeptember 17, 1997
Term endedMay 14, 2013
Application numberEP 93913825
Classification (CPC)A01N43/34 +2 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedMay 14, 1993PublishedFeb 28, 1996Patent grantedSep 17, 1997Term endedMay 14, 2013

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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