Method for inducing a cell-mediated immune response and parenteral vaccine formulations therefor
CA 2731995 C · Owner: Merrion Research Iii Limited · Inventors: Brayden, David James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of inducing either a T H1 polarised immune response a T H2 polarised immune response or a combined T H1 and T H2 response to an antigen and associated vaccine formulations are disclosed. A method is provided for inducing a polarised TH 1 response by parenteral administration of microparticles sized such that at least 50% of the microparticles are less than 5 µm the microparticles containing antigen entrapped or encapsulated by a biodegradable polymer. Additionally a method is provided for inducing a polarised T H2 response by parenteral administration of nanoparticles sized such that at least 50% of the nanoparticles are less than 600 nm the nanoparticles containing antigen …
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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 August 31, 1999 and granted May 28, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 31, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 31, 2021.
- 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.