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Expired European patentEurope

Latent catalysts for epoxy curing systems

EP 0954553 B1 · Applicant: THE DOW CHEMICAL COMPANY

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 20, 1998 and granted August 11, 2004. A European patent lasts at most 20 years from filing, so its term ended January 20, 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 July 20, 2023.
  • 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 20, 1998
PublishedNovember 10, 1999
GrantedAugust 11, 2004
Term endedJanuary 20, 2018
Application numberEP 98903586
Classification (CPC)C08G59/18 +2 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedJan 20, 1998PublishedNov 10, 1999Patent grantedAug 11, 2004Term endedJan 20, 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

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.