Virus-like particles, methods of preparation, and immunogenic compositions
CA 2486282 C · Owner: Yao, Qizhi · Inventors: Yang, Chinglai; Yao, Qizhi; Kang, Sang-Moo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Briefly described, virus-like particles methods of preparing virus-like , particles immunogenic compositions that include virus-like particles and , methods of liciting an immune response using immunogenic compositions that include virus-like particles are described herein. A virus-like particle (VLP) can include a viral core protein that can self assemble into the VLP core and at least one viral surface envelope glycoprotein expressed on the surface of the VLP. The viral protein and the viral surface envelope glycoprotein are from different viruses. Another VLP can include a viral core protein that can self assemble into a VLP core; at least one viral surface envelope glycoprotein …
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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 May 19, 2003 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 19, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 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.
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.