Scorpion toxins
CA 2341062 A1 · Owner: E.I. Du Pont De Nemours And Company · Inventors: Herrmann, Rafael; Mccutchen, Billy F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to an isolated nucleic acid fragment encoding a scorpion sodium channel agonist. The invention also relates to the construction of a chimeric gene encoding all or a portion of the scorpion sodium channel agonist, in sense or antisense orientation wherein expression , of the chimeric gene results in production of altered levels of the scorpion sodium channel agonist in a transformed host cell.
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 October 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 2021.
- 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.