Bacterial membrane fractions with adjuvant effect
CA 2367917 A1 · Owner: Libon, Christine · Inventors: Bonnefoy, Jean-Yves; Beck, Alain; N'Guyen, Thien Ngoc
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns the use of a membrane fraction of gram-negative bacteria in particular Klebsiella pneumoniae combined with an antigen or hapten for preparing a pharmaceutical composition designed to direct the immune response towards a Th1 and/or a mixed Th1/Th2 type response directed against said antigen or hapten. The invention further concerns methods for preparing said membrane fractions and pharmaceutical compositions containing them and their uses for preventing and treating infectious diseases in particular those involving paramyxovirus such as VRS and cancers, in particular those with tumour-associated antigens.
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 15, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 15, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2022.
- 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.