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Expired Canadian patentCanada

Microporation of tissue for delivery of bioactive agents

CA 2276312 C · Owner: Altea Technologies, Inc. · Inventors: Eppstein, Jonathan A.

CIPO record

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

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Abstract From the Canadian patent

A method of enhancing the permeability of a biological membrane including the , skin or mucosa of an animal or the outer layer of a plant to a permeant is described utilizing microporation of selected depth and optionally one or more of sonic, electromagnetic, mechanical and thermal energy and a chemical enhancer. Microporation is accomplished to form a micropore of selected depth in the biological membrane and the porated site is contacted with the permeant. Additional permeation enhancement measures may be applied to the site to enhance both the flux rate of the permeant into the organism through the micropores as well as into targeted tissues within the organism.

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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 December 30, 1997 and granted November 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 30, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 30, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 30, 1997
GrantedNovember 27, 2012
Term endedDecember 30, 2017
Patent numberCA 2276312 C
Classification (IPC)A61B5/14 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedDec 30, 1997Patent grantedNov 27, 2012Term endedDec 30, 2017

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