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Expired European patentEurope

Novel dendritic polymers having monophosphonic terminations, method for preparing them, and their use

EP 1689807 B1 · Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)

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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 November 23, 2004 and granted August 17, 2016. A European patent lasts at most 20 years from filing, so its term ended November 23, 2024.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledNovember 23, 2004
PublishedAugust 16, 2006
GrantedAugust 17, 2016
Term endedNovember 23, 2024
Application numberEP 04805518
Classification (CPC)C10M153/04 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedNov 23, 2004PublishedAug 16, 2006Patent grantedAug 17, 2016Term endedNov 23, 2024

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

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