Expired European patentEurope
Process for preparing alpha-anomer enriched 2-deoxy-2,2-difluoro-D-ribofuranosyl sulfonates
EP 0577302 B1 · Applicant: ELI LILLY AND COMPANY
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
Read the whole patent
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 21, 1993 and granted July 16, 1997. A European patent lasts at most 20 years from filing, so its term ended June 21, 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 December 21, 2018.
- 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 21, 1993
PublishedJanuary 5, 1994
GrantedJuly 16, 1997
Term endedJune 21, 2013
Application numberEP 93304814
Classification (CPC)C07H11/00 +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.