Feed additives for cattle: prevention of e. coli infection
CA 2432617 A1 · Owner: Cheung, Ling Yuk · Inventors: Cheung, Ling Yuk
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to feed additives for prevention of E. coli infection in, cattle. The invention provides methods for making a biological compositions comprising, yeast cells that can improve the immune functions of cattle such that the incidence of E. coli, infection is reduced. The invention also relates to methods for manufacturing the biological, compositions, and methods of using the biological compositions as feed additives.
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 18, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 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.