Production of hydrolysed proteins
CA 2000345 C · Owner: Cornet, Paul-Emile · Inventors: So, Rebecca Sui-Chun; Cornet, Paul-Emile; Tandy, John Stewart
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the production of a hydrolysed protein which comprises hydrolysing a plant or animal protein with hydrochloric acid to give a slurry and then before, or after filtering off the residual unhydrolysed material treating with alkali to a pH of from 8 to 14 and holding for a period of time to reduce the amount of undesirable chlorinated compounds and readjusting to a pH of from 4 to 7 to give a liquid hydrolysed protein filtrate.
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 October 10, 1989 and granted April 27, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2011.
- 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.