Expired European patentEurope
Polyamidoamine curing agents based on mixtures of fatty and aromatic carboxylic acids
EP 1024159 B1 · Applicant: AIR PRODUCTS AND CHEMICALS, INC.
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.
Why it's free to use
- Filed January 25, 2000 and granted July 23, 2003. A European patent lasts at most 20 years from filing, so its term ended January 25, 2020.
- 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 25, 2025.
- 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 25, 2000
PublishedAugust 2, 2000
GrantedJuly 23, 2003
Term endedJanuary 25, 2020
Application numberEP 00101446
Classification (CPC)C09D163/00 +1 more
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.