Process for removing chlorophyll colour impurities from vegetable oils
CA 2099039 C · Owner: Hussein, Ahmed Abdi · Inventors: Rubin, Leon Julius; Beharry, Christopher Randall; Hussein, Ahmed Abdi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for removing chlorophyll color impurities from vegetable oils the, process comprises:, i) dispersing a source of phosphoric acid in vegetable oil to form a mixture having a moisture content of less than 0.1% by weight which mixture is maintained at a temperature in the range of 70°C to 160°C until a precipitate containing chlorophyll color impurities is formed; and ii) at any time thereafter during conventional oil processing up to and including the removal of bleaching clay from the oil separating the precipitated, material from the oil to remove the chlorophyll color impurities with the precipitated material.
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 June 23, 1993 and granted August 19, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 23, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 23, 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.