Process for the production of clathrate inclusion complexes
CA 2227465 C · Owner: Woodstone Technologies Limited · Inventors: Nickel, Gary B.; Berger, Bernhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the formation of clathrate inclusion complexes comprising suspending a suitable starting material such as acetylated starch in water, heating the resulting suspension past the gelation point of the starting material, cooling the resulting hydrocolloid to just above the convolution temperature of the starting material cooling the , resulting hydrogel while adding a lipid such as a triglyceride and homogenizing the resulting product at a temperature below the melting point of the lipid in the case of fats and 45° C in the case of oils.
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 July 18, 1995 and granted September 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 18, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 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.
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.