Enzyme treatment for infection
CA 2394856 C · Owner: Anderson, David M. · Inventors: Liu, Lin; Hsiao, Humg-Yu; Fodge, Douglas W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Enzymes of a particular class, characterized by the ability to cleave a linkage that effects release of a cell-surface protein or carbohydrate which , does not contain an anti-infection agent display significant anti-infectious , activity. Upon oral administration these enzymes are effective, for example in the treatment of digestive tract infections in humans and in animals. In the latter, there are benefits of significantly improved growth rate feed , efficiency, and overall health.
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 December 8, 2000 and granted May 10, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2022.
- 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.