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Expired European patentEurope

Epoxy resin systems containing methyl-2,6-cyclohexanediamine

EP 0443344 B1 · Applicant: AIR PRODUCTS AND CHEMICALS, INC.

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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 28, 1991 and granted December 7, 1994. A European patent lasts at most 20 years from filing, so its term ended January 28, 2011.
  • 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 28, 2016.
  • 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 28, 1991
PublishedAugust 28, 1991
GrantedDecember 7, 1994
Term endedJanuary 28, 2011
Application numberEP 91101063
Classification (CPC)C08G59/5026

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedJan 28, 1991PublishedAug 28, 1991Patent grantedDec 7, 1994Term endedJan 28, 2011

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.