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Expired European patentEurope

Cement setting retarder and cement setting retarder sheet

EP 0754656 B1 · Applicant: Daicel Huels Ltd.

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Overview

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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 February 7, 1996 and granted September 15, 2004. A European patent lasts at most 20 years from filing, so its term ended February 7, 2016.
  • 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 August 7, 2021.
  • 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.
FiledFebruary 7, 1996
PublishedJanuary 22, 1997
GrantedSeptember 15, 2004
Term endedFebruary 7, 2016
Application numberEP 96901948
Classification (CPC)C04B41/009 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedFeb 7, 1996PublishedJan 22, 1997Patent grantedSep 15, 2004Term endedFeb 7, 2016

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.