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Expired European patentEurope

Aqueous silicon emulsion, useful as base for preparing a water resistant and anti-adherent paper coating, preparation method of such an emulsion and anti-adherent coats

EP 1044237 B1 · Applicant: RHODIA CHIMIE

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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 December 23, 1998 and granted August 4, 2004. A European patent lasts at most 20 years from filing, so its term ended December 23, 2018.
  • 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 June 23, 2024.
  • 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.
FiledDecember 23, 1998
PublishedOctober 18, 2000
GrantedAugust 4, 2004
Term endedDecember 23, 2018
Application numberEP 98963618
Classification (CPC)C08L83/04 +1 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedDec 23, 1998PublishedOct 18, 2000Patent grantedAug 4, 2004Term endedDec 23, 2018

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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