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Expired European patentEurope

Cell culture medium, improved process of growing animal cells, method of producing microcarriers and microcarriers

EP 0058689 B1 · Applicant: Corning Glass Works

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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.

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Why it's free to use

  • Filed August 14, 1981 and granted April 23, 1986. A European patent lasts at most 20 years from filing, so its term ended August 14, 2001.
  • 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 February 14, 2007.
  • 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.
FiledAugust 14, 1981
PublishedSeptember 1, 1982
GrantedApril 23, 1986
Term endedAugust 14, 2001
Application numberEP 81902357
Classification (CPC)C12N5/0012 +2 more

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedAug 14, 1981PublishedSep 1, 1982Patent grantedApril 23, 1986Term endedAug 14, 2001

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.