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Expired European patentEurope

Polyester polycondensation with catalyst and a catalyst enhancer

EP 1270641 B1 · Applicant: Atofina Chemicals, Inc.

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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 January 29, 2002 and granted August 30, 2006. A European patent lasts at most 20 years from filing, so its term ended January 29, 2022.
  • 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.
FiledJanuary 29, 2002
PublishedJanuary 2, 2003
GrantedAugust 30, 2006
Term endedJanuary 29, 2022
Application numberEP 02250584
Classification (CPC)B01J31/26 +2 more

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedJan 29, 2002PublishedJan 2, 2003Patent grantedAug 30, 2006Term endedJan 29, 2022

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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