Process for producing a calcium carboxylate
CA 2438928 A1 · Owner: Khramov, Mikhail I. · Inventors: Uriarte, Anthony K.; Khramov, Mikhail I.; Peters, Norman J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for producing a calcium carboxylate comprising contacting a nitrile compound, a calcium compound selected from calcium hydroxide calcium oxide or, mixtures thereof, and water at a temperature of about 90°C to about 250°C at a, sufficient pressure and for a sufficient time to produce a reaction mixture comprising, calcium carboxylate.
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 August 29, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 29, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 29, 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.