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Expired European patentEurope

Polyimide copolymer, polyimide copolymer resin molded products and their preparation

EP 0879839 B1 · Applicant: Toray-DuPont Company, Ltd.

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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 June 3, 1997 and granted January 23, 2002. A European patent lasts at most 20 years from filing, so its term ended June 3, 2017.
  • 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 December 3, 2022.
  • 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.
FiledJune 3, 1997
PublishedNovember 25, 1998
GrantedJanuary 23, 2002
Term endedJune 3, 2017
Application numberEP 97108876
Classification (CPC)C08G73/1046 +2 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedJune 3, 1997PublishedNov 25, 1998Patent grantedJan 23, 2002Term endedJune 3, 2017

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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