Patent Yard Sign in
Expired European patentEurope

A polymer/clay nanocomposite and process for the production thereof

EP 1757625 B1 · Applicant: China Petroleum & Chemical Corporation

EPO PDF

Overview

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

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed April 28, 2005 and granted October 28, 2015. A European patent lasts at most 20 years from filing, so its term ended April 28, 2025.
  • 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.
FiledApril 28, 2005
PublishedFebruary 28, 2007
GrantedOctober 28, 2015
Term endedApril 28, 2025
Application numberEP 05752485
Classification (CPC)C08F36/04 +2 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedApril 28, 2005PublishedFeb 28, 2007Patent grantedOct 28, 2015Term endedApril 28, 2025

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.