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Expired Canadian patentCanada

Composition and method for the treatment of water related ear disorders

CA 2530772 C · Owner: Swimseal International (Pty) Ltd. · Inventors: Tunguy-Desmarais, Peter

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

This invention provides a method for the treatment of water related outer ear canal disorders comprising the steps of applying a water resistant and antimicrobial film topically to the external ear canal. The invention includes a composition for the treatment of water related outer ear canal disorders comprising a water repellent agent in the form of a polysiloxane and an antimicrobial agent in the form of the essential oil of Melaleuca alternifolia or Tea Tree oil in which the two oils are combined to produce a film forming liquid that is capable of being applied topically to the external ear canal by instillation in droplet 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 July 2, 2004 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 2, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 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.
FiledJuly 2, 2004
GrantedMarch 13, 2012
Term endedJuly 2, 2024
Patent numberCA 2530772 C
Classification (IPC)A61K9/00 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJuly 2, 2004Patent grantedMarch 13, 2012Term endedJuly 2, 2024

Sources & verification

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