Composite dosage forms having an inlaid portion
CA 2461616 A1 · Owner: Sowden, Harry S. · Inventors: Thomas, Martin; 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
A dosage form comprises at least one active ingredient a first portion which , comprises an exterior surface and one or more cavities defining at least one interior surface having indentations and an exterior surface and a second , molded portion which is inlaid into the cavities of the first portion and has an exterior surface. The first and second portions are in contact at an interface, the second portion comprises a solidified thermoplastic material and the second portion resides substantially conformally upon the indentations of the first portion. In another embodiment a dosage form comprises at least , one active ingredient a core having an outer surface and a shell residing on …
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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.