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Expired Canadian patentCanada

Absorption enhancing agents

CA 2514124 C · Owner: Supernus Pharmaceuticals, Inc. · Inventors: Keshavarz-Shokri, Ali; Ginski, Mark; Kibalo, Ben

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Disclosed are new compounds that increase the absorption of pharmaceutical agents across mucous membranes. These absorption enhancers allow higher bioavailability of administered drugs. The enhancers advantageously have low or no cytotoxicity.

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 January 22, 2004 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 22, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 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.
FiledJanuary 22, 2004
GrantedApril 10, 2012
Term endedJanuary 22, 2024
Patent numberCA 2514124 C
Classification (IPC)A61K47/22 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJan 22, 2004Patent grantedApril 10, 2012Term endedJan 22, 2024

Sources & verification

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