Compositions of aminoalkyl methacrylate copolymer e and dissolution modifying excipients for preparing capsules by injection moulding
CA 2436416 C · Owner: Clarke, Allan J. · Inventors: Mcallister, Stephen Mark; Clarke, Allan J.; Brown, Adrian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to pharmaceutically acceptable polymeric compositions suitable for injection molding of single or multi-component pharmaceutical dosage forms comprising a plurality of drug substance containing sub-units, being capsule compartments and/or solid sub-units comprising a solid matrix of a polymer which contains a drug substance the , sub- units being connected together in the assembled dosage form by a weld between parts of the assembled dosage form.
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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 January 30, 2002 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 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
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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.