Expired European patentEurope
Lymphoblastoid cell lines capable of continuously and spontaneously producing interferon, process for preparing the same, and process for the human interferon production by the same
EP 0048471 B1 · Applicant: AJINOMOTO CO., INC.
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 September 18, 1981 and granted March 27, 1985. A European patent lasts at most 20 years from filing, so its term ended September 18, 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 March 18, 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.
FiledSeptember 18, 1981
PublishedMarch 31, 1982
GrantedMarch 27, 1985
Term endedSeptember 18, 2001
Application numberEP 81107428
Classification (CPC)C07K14/555
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.