Method for diagnosing a transmissible spongiform subacute encephalopathy caused by an unconventional transmissible agent strain in a biological sample
CA 2390891 C · Owner: Commissariat A L'Energie Atomique · Inventors: Grassi, Jacques; Comoy, Emmanuel; Deslys, Jean-Philippe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for diagnosing a transmissible spongiform subacute encephalopathy caused by an unconventional transmissible agent strain Said method consists in: (1) treating said sample with at least a protease K so as to completely degrade PrPsense in conditions whereby all or part of the repeat octa-peptide motifs of PrPres are preserved whatever the strain; (2) contacting said treated sample with a ligand capable of specifically identifying said repeat octa-peptide motifs and (3) detecting the possible presence of the ligand-repeat octa-peptide motifs complex. The invention also concerns a differential-diagnosis method.
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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 November 13, 2000 and granted May 1, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 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
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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.