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Expired Canadian patentCanada

Cannabinoid liquid formulations for mucosal administration

CA 2454644 C · Owner: Whittle, Brian Anthony · Inventors: Whittle, Brian Anthony

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 invention relates to pharmaceutical formulations and , more particularly to formulations containing cannabinoids for administration via a pump action spray. In particular the , invention relates to pharmaceutical formulations for use in , administration of lipophilic medicaments comprising one or more cannabinoids via mucosal surfaces, comprising: at least one lipophilic medicament which comprises one or more cannabinoids a solvent and a co-solvent, wherein the total amount of solvent and co-solvent present in the formulation is greater than 55% wt/wt of the formulation, the formulation is absent of a self emulsifying agent and/or a fluorinated propellant and the and , the …

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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 August 14, 2003 and granted September 16, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 14, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 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.
FiledAugust 14, 2003
GrantedSeptember 16, 2014
Term endedAugust 14, 2023
Patent numberCA 2454644 C
Classification (IPC)A61K31/35 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedAug 14, 2003Patent grantedSep 16, 2014Term endedAug 14, 2023

Sources & verification

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