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Expired European patentEurope

Stable dispersions of organic polymers in polyepoxides

EP 0152425 B1 · Applicant: THE DOW CHEMICAL COMPANY

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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 July 20, 1984 and granted November 23, 1989. A European patent lasts at most 20 years from filing, so its term ended July 20, 2004.
  • 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 January 20, 2010.
  • 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.
FiledJuly 20, 1984
PublishedAugust 28, 1985
GrantedNovember 23, 1989
Term endedJuly 20, 2004
Application numberEP 84903005
Classification (CPC)C08F283/10 +1 more

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedJuly 20, 1984PublishedAug 28, 1985Patent grantedNov 23, 1989Term endedJuly 20, 2004

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

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