Expired Canadian patentCanada
Construction of west nile virus and dengue virus chimeras for use in a live virus vaccine to prevent disease caused by west nile virus
CA 2903126 C · Owner: Walter Reed Army Institute Of Research · Inventors: Chanock, Robert M.; Pletnev, Alexander G.; Blaney, Joseph E. Jr.
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 present invention relates to attenuated immunogenic West Nile virus chimeras built on a dengue virus backbone for the production of immunogenic live, attenuated West Nile virus vaccines.
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 January 9, 2003 and granted March 24, 2020. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 9, 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.
FiledJanuary 9, 2003
GrantedMarch 24, 2020
Term endedJanuary 9, 2023
Patent numberCA 2903126 C
Classification (IPC)C07K19/00 +2 more
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.