Actinomyces pyogenes and actinomyces pyogenes/fusobacterium necrophorum vaccines for immunizing cattle and sheep
CA 2223754 C · Owner: Chengappa, M.M. · Inventors: Nagaraja, T.G.; Chengappa, M.M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel inocula for administration to ruminant animals such as cattle or sheep are provided in order to immunize the animals and lessen the incidence of liver abscesses and/or foot rot therein. In one aspect the , invention pertains to an A. pyogenes-derived vaccine including an inactivated cell culture product (e.g. cell-elaborated supernatant) from A. pyogenes cell culture in a suitable carrier. In another aspect the invention relates to a multivalent vaccine including at least first and second bacterial components in a carrier the first component , comprises an inactivated cell culture product of A. pyogenes whereas the second component comprises an inactivated cell culture product …
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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 7, 1996 and granted February 22, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 7, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2018.
- 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.