Avian vaccine composition for the protection of poultry against disease and infection caused by e. coli and salmonella
CA 2524939 C · Owner: Kumar, Mahesh · Inventors: Fan, Henry H.; Kumar, Mahesh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a vaccine composition comprising a combination of a genetic deletion mutant S. typhimurium microorganism and a genetic deletion mutant E. coli microorganism, suitable for mass application to poultry. Also provided is a safe and effective method to protect poultry against the ravages of E coli and Salmonella infection and disease.
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 May 12, 2004 and granted December 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 12, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 2026.
- 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.