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Expired Canadian patentCanada

Mixed lipid-bicarbonate colloidal particles for delivering drugs or calories

CA 2222161 C · Owner: Biomolecular Products, Inc. · Inventors: Yesair, David W.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A composition of mixed lipid colloidal particles is disclosed containing nonesterified fatty acids having 8-24 carbon atoms of saturated unsaturated , and polyunsaturated fatty acid monoglycerides which are monoesters of glycerol and fatty acids having 8-24 carbon atoms of saturated unsaturated , and polyunsaturated fatty acid lysophosphatidylcholine in which the fatty acid moiety has 8-24 carbon atoms of saturated unsaturated and , polyunsaturated fatty acid and a titrating agent. The compositions can optionally also contain bile salts and/or other biologically compatible surfactants. These compositions form submicron size colloidal particles and can act as vehicles for transporting …

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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 June 6, 1996 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 6, 1996
GrantedFebruary 5, 2002
Term endedJune 6, 2016
Patent numberCA 2222161 C
Classification (IPC)A61K9/10 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJune 6, 1996Patent grantedFeb 5, 2002Term endedJune 6, 2016

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.