Expired Canadian patentCanada
Dispersable formulation
CA 2000763 C · Owner: Ciba-Geigy Ag · Inventors: Matthews, Graham Paul; Murphy, Lorraine Mary
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a dispersible solid drug formulation comprising finely divided diclofenac as the free acid from 5, to 25 % by weight of a disintegrant and a pharmaceutically acceptable 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 October 16, 1989 and granted November 14, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 16, 1989
GrantedNovember 14, 2000
Term endedOctober 16, 2009
Patent numberCA 2000763 C
Classification (IPC)A61K31/00 +2 more
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.