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Expired European patentEurope

Oriented film easy to split and method of producing the same

EP 0540293 B1 · Applicant: IDEMITSU PETROCHEMICAL CO. LTD.

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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.

Why it's free to use

  • Filed October 27, 1992 and granted July 24, 1996. A European patent lasts at most 20 years from filing, so its term ended October 27, 2012.
  • 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 April 27, 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.
FiledOctober 27, 1992
PublishedMay 5, 1993
GrantedJuly 24, 1996
Term endedOctober 27, 2012
Application numberEP 92309827
Classification (CPC)B32B27/34 +2 more

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedOct 27, 1992PublishedMay 5, 1993Patent grantedJuly 24, 1996Term endedOct 27, 2012

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