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Expired European patentEurope

Moulding composition of a high-molecular-weight linear polyester

EP 0023248 B1 · Applicant: CHEMISCHE WERKE HÜLS AG

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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 May 29, 1980 and granted May 26, 1982. A European patent lasts at most 20 years from filing, so its term ended May 29, 2000.
  • 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 November 29, 2005.
  • 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.
FiledMay 29, 1980
PublishedFebruary 4, 1981
GrantedMay 26, 1982
Term endedMay 29, 2000
Application numberEP 80102993
Classification (CPC)C08L67/02

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedMay 29, 1980PublishedFeb 4, 1981Patent grantedMay 26, 1982Term endedMay 29, 2000

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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