Expired European patentEurope
Process for the separation of a proteinic substance starting from a solution containing it upon affinity filtration, and application of the process to enzymatic analyses
EP 0022005 B1 · Applicant: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM)
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 June 19, 1980 and granted April 17, 1985. A European patent lasts at most 20 years from filing, so its term ended June 19, 2000.
- 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 December 19, 2005.
- 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.
FiledJune 19, 1980
PublishedJanuary 7, 1981
GrantedApril 17, 1985
Term endedJune 19, 2000
Application numberEP 80400913
Classification (CPC)G01N33/74 +1 more
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.