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Canadian application, no grantCanada

Liquid dosage compositions of stable nanoparticulate active agents

CA 2492488 A1 · Owner: Hilborn, Matthew R. · Inventors: Hovey, Douglas C.; Pruitt, John D.; Ryde, Tuula A.

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

The present invention relates to liquid dosage compositions of stable nanoparticulate active agents. The liquid dosage compositions of the invention include osmotically active crystal growth inhibitors that stabilize the nanoparticulate active agents against crystal and particle size growth of the active agent.

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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 July 16, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 16, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 16, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 16, 2003
GrantedNo grant recorded
Term endedJuly 16, 2023
Patent numberCA 2492488 A1
Classification (IPC)A61K9/14 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJuly 16, 2003Term endedJuly 16, 2023

Sources & verification

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