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Expired European patentEurope

Serum-free medium for cultivation of postnatal central neurons

EP 0668348 B1 · Applicant: KYORIN PHARMACEUTICAL CO., 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.

Why it's free to use

  • Filed February 13, 1995 and granted December 10, 1997. A European patent lasts at most 20 years from filing, so its term ended February 13, 2015.
  • 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 August 13, 2020.
  • 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.
FiledFebruary 13, 1995
PublishedAugust 23, 1995
GrantedDecember 10, 1997
Term endedFebruary 13, 2015
Application numberEP 95101935
Classification (CPC)C12N5/0619

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedFeb 13, 1995PublishedAug 23, 1995Patent grantedDec 10, 1997Term endedFeb 13, 2015

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