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Expired European patentEurope

Catalysts for polyester production, process for producing polyester, and polyester

EP 1270640 B1 · Applicant: Mitsui 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 August 21, 2001 and granted February 18, 2004. A European patent lasts at most 20 years from filing, so its term ended August 21, 2021.
  • 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.
FiledAugust 21, 2001
PublishedJanuary 2, 2003
GrantedFebruary 18, 2004
Term endedAugust 21, 2021
Application numberEP 01957001
Classification (CPC)C08G63/82 +1 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedAug 21, 2001PublishedJan 2, 2003Patent grantedFeb 18, 2004Term endedAug 21, 2021

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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