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Expired Canadian patentCanada

Methods and devices for treating non-stuttering pathologies using frequency altered feedback

CA 2500570 C · Owner: Kalinowski, Joseph · Inventors: Rastatter, Michael; Stuart, Andrew; Kalinowski, Joseph

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 device (10) and method for treating subjects having non-stuttering pathologies or disorders using frequency altered feedback including positioning a ear-supported device (10E) for receiving auditory signals associated with a subject's speech in close proximity to at least one ear of an individual, the device (10) being adapted to be in communication with at least one of the ear canals of the individual receiving at the device (10) an , audio signal associated with the subject's speech; generating from the device (10) a frequency altered auditory feedback signal having an associated frequency shift between about +/- 2 octaves relative to the received audio signal; and transmitting …

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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 September 30, 2003 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 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.
FiledSeptember 30, 2003
GrantedApril 10, 2012
Term endedSeptember 30, 2023
Patent numberCA 2500570 C
Classification (IPC)A61F5/58

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedSep 30, 2003Patent grantedApril 10, 2012Term endedSep 30, 2023

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