Transitional metal complexes of non steroidal anti-inflammatory drugs
CA 2241647 A1 · Owner: Jain, Rajesh · Inventors: Jain, Rajesh; Singla, Anil; Singh, Amarjit
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A COX 2 selective pharmaceutical composition is disclosed. The composition has a potency ratio less than 1 and comprises a complex of Naproxen and/or one or more salts and/or adducts of Naproxen or mixtures thereof and Zinc in one or more salt forms or mixtures thereof and represented by the formula (Drug)2 Zn.nH2O. The drug in the above formula is Naproxen in a suitable pharmaceutical base/carrier or diluent.
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 June 24, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 24, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 24, 2020.
- 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.