Method of decomposing organophosphorus compounds
CA 2518562 C · Owner: Neverov, Alexei A. · Inventors: Neverov, Alexei A.; Tsang, Josephine S. W.; Brown, R. Stanley
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and kits for decomposing organophosphorus compounds in non-aqueous media at ambient conditions are described. Insecticides pesticides, and , chemical warfare agents can be quickly decomposed to non-toxic products. The method comprises combining the organophosphorus compound with a non-aqueous solution, preferably an alcohol, comprising metal ions and at least a trace amount of alkoxide ions. In a first preferred embodiment the metal ion is a , lanthanum ion. In a second preferred embodiment the metal ion is a transition , metal.
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 March 12, 2004 and granted August 5, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 12, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 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.