Mixed lipid-bicarbonate colloidal particles for delivering drugs or calories
CA 2089003 C · Owner: Yesair, David W. · Inventors: Yesair, David W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition is disclosed containing non-esterified fatty acids having 14-18 carbon atoms, monoglycerides which are monoesters of glycerol and fatty acids having 14-18 carbon atoms, lysophosphatidylcholine in which the fatty acid moiety has, 14-18 carbon atoms and bicarbonate. The compositions can optionally also contain bile salts. These compositions form , submicron size colloidal particles and can act as vehicles for transporting orally administered drugs, sources of calories in the form of readily absorbable fats and as particles for topical. application to the skin. A method of making,these particles is also described.
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 August 12, 1991 and granted March 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 2013.
- 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.