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Expired European patentEurope

Oligomers and polymers of cyclic imino carboxylic acids

EP 1192136 B1 · Applicant: WISCONSIN ALUMNI RESEARCH FOUNDATION

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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 June 13, 2000 and granted May 18, 2011. A European patent lasts at most 20 years from filing, so its term ended June 13, 2020.
  • 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 December 13, 2025.
  • 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.
FiledJune 13, 2000
PublishedApril 3, 2002
GrantedMay 18, 2011
Term endedJune 13, 2020
Application numberEP 00944655
Classification (CPC)C07D241/24 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedJune 13, 2000PublishedApril 3, 2002Patent grantedMay 18, 2011Term endedJune 13, 2020

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

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