Orally dispersible tablet with low friability and method for preparing same
CA 2366027 C · Owner: Gendrot, Edouard Andre · Inventors: Chauveau, Charles Andre; Gendrot, Edouard Andre; Di Costanzo, Laurent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a fast-disintegrating tablet such as those designed to dissolve in the mouth in contact with saliva in less than 30 seconds forming an easy-to-swallow suspension and based on an active substance in the form of coated microcrystals or microgranules and a mixture of carriers comprising at least a disintegrating agent a soluble agent and a lubricating agent. The invention is characterised in that the lubricating agent is in powder form and is distributed at least for the greater part at the tablet surface and its friability measured as specified in the French codex (10?th¿ edition V.5.1- Friability of tablets , January 1993) is less than 1 % preferably less than 0.5 %, …
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 February 29, 2000 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 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.