Recombinant polypeptides for diagnosing infection with trypanosoma cruzi
CA 2951595 C · Owner: Otsu, Keiko · Inventors: Kirchhoff, Louis V.; Otsu, Keiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Recombinant polypeptides are disclosed that are useful for diagnosing American trypanosomiasis or Chagas disease, a disease caused by the infectious agent Trypanosoma cruzi. Preferably DNA sequences encoding the recombinant proteins are placed in plasmid vectors to be expressed in an organism.
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 December 4, 2003 and granted November 5, 2019. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 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.