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Expired European patentEurope

Polyester blow-molded articles

EP 0581410 B1 · Applicant: SHOWA DENKO KABUSHIKI KAISHA

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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 April 19, 1993 and granted October 22, 1997. A European patent lasts at most 20 years from filing, so its term ended April 19, 2013.
  • 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 October 19, 2018.
  • 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.
FiledApril 19, 1993
PublishedFebruary 2, 1994
GrantedOctober 22, 1997
Term endedApril 19, 2013
Application numberEP 93302978
Classification (CPC)C08G63/16 +2 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedApril 19, 1993PublishedFeb 2, 1994Patent grantedOct 22, 1997Term endedApril 19, 2013

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