Methods and compositions for improving growth of meat-type poultry
CA 2495082 C · Owner: Shih, Jason C. H. · Inventors: Shih, Jason C. H.; Odetallah, Nasser
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides methods of improving growth performance improving the efficiency of feed utilization increasing feed digestibility, and decreasing mortality of immature and developing animals receiving animal feed. Methods of producing a crude keratinase enzyme extract and animal feed supplements for achieving the same are also provided.
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 August 8, 2003 and granted July 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 8, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 2025.
- 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.