Salts comprising cyanoborate anions
CA 2771069 C · Owner: Merck Patent Gesellschaft Mit Beschraenkter Haftung · Inventors: Finze, Maik; Welz-Biermann, Urs; Willner, Helge
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are a method for producing alkali metal cyanoborates the further processing thereof into salts comprising cyanoborate anions and organic cations said salts, and the use thereof as ionic liquids.
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 January 15, 2004 and granted September 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2026.
- 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.