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Expired Canadian patentCanada

Method of treating biological tissue by microwave-irradiation

CA 2509519 C · Owner: Funamoto, Seiichi · Inventors: Kitamura, Soichiro; Fujisato, Toshiya; Kishida, Akio

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

A method of efficiently removing or fixing donor cells from a native tissue of mammalian origin comprises immersing the tissue in a treating solution and irradiating the tissue with microwave while maintaining the temperature thereof in the range between 0°C and 40°C .

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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 11, 2003 and granted May 15, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 11, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 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.
FiledDecember 11, 2003
GrantedMay 15, 2012
Term endedDecember 11, 2023
Patent numberCA 2509519 C
Classification (IPC)A61L27/00 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedDec 11, 2003Patent grantedMay 15, 2012Term endedDec 11, 2023

Sources & verification

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