Expired Canadian patentCanada
In ovo vaccination against coccidiosis
CA 2223699 C · Owner: Evans, Nigel A. · Inventors: Weber, Frederick H.; Findly, R. Craig; Evans, Nigel A.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method of vaccinating a domesticated bird against coccidiosis comprising administering in ovo an effective immunizing dose of live Eimeria sporocysts or oocysts, or a mixture thereof.
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 7, 1995 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 7, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 7, 1995
GrantedJuly 2, 2002
Term endedJune 7, 2015
Patent numberCA 2223699 C
Classification (IPC)A61K39/01
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.