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Expired European patentEurope

Process to produce mouldable vinyl chloride polymers

EP 0090142 B1 · Applicant: HÜLS AKTIENGESELLSCHAFT

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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.

Why it's free to use

  • Filed January 29, 1983 and granted February 26, 1986. A European patent lasts at most 20 years from filing, so its term ended January 29, 2003.
  • 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 29, 2008.
  • 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 29, 1983
PublishedOctober 5, 1983
GrantedFebruary 26, 1986
Term endedJanuary 29, 2003
Application numberEP 83100847
Classification (CPC)C08F14/06

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedJan 29, 1983PublishedOct 5, 1983Patent grantedFeb 26, 1986Term endedJan 29, 2003

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