Modified release dosage forms
CA 2461870 A1 · Owner: Li, Shun-Por · Inventors: Wynn, David; Lee, Der-Yang; Sowden, Harry S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In one embodiment, a dosage form comprises: (a) at least one active ingredient; (b) a molded core which is solid at room temperature; and (c) a shell which is in contact with at least a portion of the core wherein the , dosage form provides modified release of the active ingredient upon contacting of the dosage form with a liquid medium. In another embodiment of this invention, a dosage form comprises: (a) at least one active ingredient; (b) a molded core comprising a plurality of particles; and (c) a shell which is in contact with at least a portion of the core wherein the dosage form provides , modified release of the active ingredient upon contacting of the dosage form with a …
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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 September 28, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 28, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 28, 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.