Inconnu
CA 2307079 A1 · Owner: Ekanayake, Sunetra · Inventors: Ekanayake, Sunetra
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An oxidizable metal ion, such as ferrous ion in the form of ferrous sulphate, and an ascorbate, such as ascorbic acid have a, synergistic effect on cartilage development. Therapeutic compositions comprising an oxidizable metal ion and an ascorbate are therefore useful in the treatment of osteoarthritis. The addition of a glucosamine, such as glucosamine hydrochloride to, the composition has a further synergistic effect on cartilage production. Therapeutic compositions comprising an oxidizable metal ion, an ascorbate and a glucosamine derivative are even more useful in the treatment of osteoarthritis.
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 April 28, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 28, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 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
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.