Pharmaceutical composition containing 1,3-bis(2- carboxychromon-5-yloxy)2-hydroxypropane
CA 1108992 A · Owner: Fisons Limited · Inventors: Jenkins, Anthony W.; Robinson, David J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to the invention there is provided a pharmaceutical composition in the form of a tablet able to be swallowed and disintegrable in the presence of gastro-intestinal fluids and comprising from 5 to 80% by weight of 1,3-bis(2-carboxychromon-5yloxy)-2-hydroxypropane or a pharmaceutically-acceptable salt thereof, in association with from 20 to 95% by weight of a mixture of an alkali-metal or alkaline earth metal carbonate or bicarbonate and citric acid, the tablet having an equilibrated relative humidity of less than 25%.
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
- Granted September 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 1998.
- 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.