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Expired European patentEurope

Process for producing carbon fiber

EP 0118616 B1 · Applicant: TORAY INDUSTRIES, INC.

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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 December 15, 1983 and granted November 4, 1987. A European patent lasts at most 20 years from filing, so its term ended December 15, 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 June 15, 2009.
  • 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.
FiledDecember 15, 1983
PublishedSeptember 19, 1984
GrantedNovember 4, 1987
Term endedDecember 15, 2003
Application numberEP 83112618
Classification (CPC)D01F9/14 +2 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedDec 15, 1983PublishedSep 19, 1984Patent grantedNov 4, 1987Term endedDec 15, 2003

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