Attenuated strains of leishmania and uses thereof
CA 2204565 A1 · Owner: Ouellette, Marc · Inventors: Ouellette, Marc; Olivier, Martin; Papadopoulou, Barbara
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Attenuated strains of Leishmania are provided in which at least one gene contributing to virulence of the strain and expressed in both the promastigote and amastigote forms of the strain is functionally disabled such as, by deleting at least a portion of the gene or by mutagenesis of the gene. The attenuated strain may be used for administration to a host to confer protection against disease caused by a virulent Leishmania strain or as a diagnostic reagent.
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 May 6, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 6, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 2019.
- 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.