Method and apparatus for extracting cholesterol from egg yolk
CA 2106348 C · Owner: Charintranond, Wibul · Inventors: Charintranond, Wibul; Majeres, Lisa Jean; Stouffer, Scott Carl
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a method for extracting cholesterol from egg yolk. In accordance with the method a mixture of egg yolk solids, water and oil is provided The mixture is then subjected to moderate shear extraction conditions by repetitively pumping the mixture in a flowing stream through a conduit provided with at least one small diameter orifice and at least one screen mounted transversely to the direction of flow of the flowing stream. The mixture is then separated into water and oil phases by centrifugation to provide an oil please which retains the cholesterol and a water phase which contains the egg solids.
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 September 16, 1993 and granted November 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 16, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 16, 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.