Use of liposomes containing a chelating agent, a fungicide or a secropine for improving mucosal vaccination
CA 2283863 A1 · Owner: Claassen, Henricus Johannes Hermanus Maria · Inventors: Claassen, Henricus Johannes Hermanus Maria; Jeurissen, Susanne Henriette Maria; Kraal, Georg
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a solution to achieve effective mucosal vaccination without having to resort to live-vaccines. The invention provides liposomes that contain a non-toxic substance that can eliminate phagocytic cells present on the mucosal surfaces of an animal. The invention further provides said liposomes containing antigen, whereby the antigen can provide the effective mucosal immune response needed.
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 March 11, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 11, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2020.
- 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.