An additive for an animal feed
CA 2393464 C · Owner: Apajalahti, Juha Heikki Antero · Inventors: Rautonen, Nina; Bedford, Michael Richard; Apajalahti, Juha Heikki Antero
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 the use of a combination of a protease and an inner salt of a quaternary amine carboxylic acid for the preparation of an agent for the treatment and/or prophylaxis of coccidiosis and bacterial infections such as necrotic enteritis in animals. Preferred embodiments of the invention comprise the inclusion of a xylanase and/or an .alpha.-amylase in the agent. A nutritional additive comprising a combination of an inner salt of a quaternary amine carboxylic acid protease and (optionally) a xylanase and an .alpha.-amylase is also disclosed. It can be used for improving the rate of weight gain of animals.
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 December 6, 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.