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Expired Canadian patentCanada

Oil-in-water emulsions

CA 2182575 C · Owner: Herslof, Bengt · Inventors: Delogu, Marina; Herslof, Bengt; Carlsson, Anders

CIPO record

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

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Abstract From the Canadian patent

The invention relates to an oil-in-water emulsion comprising 0.01-50 % by weight of the total preparation preferably 0.1-10 %, of a, galactolipid material as am emulsifier. The galactolipid material consists of at least 50 % digalactosyldiacylglycerols the remainder being, other polar lipids. The said emulsion is suitable as a carrier for one or more active substances in a pharmaceutical composition but also in, nutritional, cosmetical, food and agricultural products.

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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 February 6, 1995 and granted November 28, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 6, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 6, 1995
GrantedNovember 28, 2000
Term endedFebruary 6, 2015
Patent numberCA 2182575 C
Classification (IPC)A61K9/12 +2 more

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedFeb 6, 1995Patent grantedNov 28, 2000Term endedFeb 6, 2015

Sources & verification

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