Expired European patentEurope
Process for isomerization of compound of aldose structure into compound of ketose structure, and isomerization agent or accelerator used therein
EP 0628050 B1 · Applicant: JAPAN as represented by DIRECTOR GENERAL OF NATIONAL FOOD RESEARCH INSTITUTE, MINISTRY OF AGRICULTURE, FORESTRY AND FISHERIES
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 December 27, 1993 and granted April 8, 1998. A European patent lasts at most 20 years from filing, so its term ended December 27, 2013.
- 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 June 27, 2019.
- 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.
FiledDecember 27, 1993
PublishedDecember 14, 1994
GrantedApril 8, 1998
Term endedDecember 27, 2013
Application numberEP 94903072
Classification (CPC)C07H3/02 +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.