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Expired European patentEurope

Polyurethane resins, a method for the production thereof and optical lenses made of said resins

EP 1819748 B1 · Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)

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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 October 26, 2005 and granted October 29, 2008. A European patent lasts at most 20 years from filing, so its term ended October 26, 2025.
  • 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.
FiledOctober 26, 2005
PublishedAugust 22, 2007
GrantedOctober 29, 2008
Term endedOctober 26, 2025
Application numberEP 05815132
Classification (CPC)C08G18/10 +2 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedOct 26, 2005PublishedAug 22, 2007Patent grantedOct 29, 2008Term endedOct 26, 2025

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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