An orally administered agent and an orally administered agent/supporting substrate complex
CA 2445347 C · Owner: Nogami, Eiji · Inventors: Nogami, Eiji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
With an object of providing an orally administered agent (in particular a film-shaped orally administered agent) with which the ease and safety of taking the agent are improved to attain this , object, in an orally administered agent lb having one drug-containing layer 1 land two water-swellable gel-forming layers 12, the water-swellable gel-forming layers 12 are provided either , directly or via intermediate layers on the both faces of the , drug-containing layer 11.
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 April 19, 2002 and granted September 27, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2024.
- 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.