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Expired Canadian patentCanada

Dosage form having a saccharide matrix

CA 2516291 C · Owner: Houghton, Christian Gauguin · Inventors: Lundegaard, Annette, Roemmelmayer; Houghton, Christian Gauguin

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention provides a non-compressed fast-dispersing solid dosage form suitable for oromucosal administration of a pharmaceutically active substance comprising (a) a first matrix forming agent in the form of maltodextrin having a dextrose equivalent (DE) of between 1 and 20,(b) a second matrix forming agent in the form of sorbitol and (c) the active , substance.

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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 February 24, 2004 and granted February 14, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 24, 2004
GrantedFebruary 14, 2012
Term endedFebruary 24, 2024
Patent numberCA 2516291 C
Classification (IPC)A61K9/00 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedFeb 24, 2004Patent grantedFeb 14, 2012Term endedFeb 24, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.