Process for making pure phosphatidylethanolamine and phosphatidylmyoinositol
CA 2107912 A1 · Owner: Bernasconi, Gerardo · Inventors: Bernasconi, Gerardo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Starting from soybean lecithin by a sequence of operations which, do not involve chemical reactions but only solvent treatments with alternative adsorptions on chromatography silica grade phosphatidylethanolamine and phosphatidylmyoinositol of purity suitable for pharmaceutical use are obtained.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 5, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 5, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.