Stable lyophilized fatty emulsions and a process for the production thereof
CA 2095627 C · Owner: Ushimaru, Kouichi · Inventors: Seki, Junzo; Yamane, Shuji; Ushimaru, Kouichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Stable lyophilized fatty emulsions are produced which comprise lyophilized lipid emulsion particles whose mean particle size is 10 to 100nm which particles contain a therapeutically active substance for a diagnostic agent together with an amount of maltose sufficient to provide a stable preparation. These emulsions are produced by the addition of maltose in any step during the production of the fatty emulsion prior to the lyophilization step.
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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 November 5, 1991 and granted January 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 5, 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.