Hydrophilic matrix dihydroergotamine (dhe) tablet and process for prducing the same
CA 1340660 C · Owner: Pierre Fabre Medicament · Inventors: Sournac, Michel; Bougaret,Joel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention concerns a tablet containing a homogenous dispersion of an active ingredient with a dihydroergotamine (DHE) base or one of its derivatives in a hydrophilic matrix characterised in that the said matrix comprises at least one swelling component and a diluent component with a swelling/diluent ratio between 0.2 and 0.6 ideally equal to approximately 0.4. It also concerns the fabrication process for such a tablet.",
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 July 20, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 20, 2016.
- 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.