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Expired Canadian patentCanada

Tactile amplification instrument and method of use

CA 2520942 C · Owner: Ellis, Randy E. · Inventors: Ellis, Randy E.; Yao, Hsin-Yun; Hayward, Vincent

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

The invention relates to a tool comprising a handle and a tip which provides amplified tactile feedback to a user regarding the material with which the tip of the tool is in contact. Tactile feedback is provided to the user via the handle of the tool in the form of movements or vibrations which correspond at least partially to those experienced by the tip of the tool as it is moved over and/or through the material. The tool optionally provides audio and/or visual feedback regarding the material. In a preferred embodiment the tool is a surgical instrument.

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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 23, 2005 and granted March 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 23, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 23, 2005
GrantedMarch 19, 2013
Term endedSeptember 23, 2025
Patent numberCA 2520942 C
Classification (IPC)G01D5/10 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedSep 23, 2005Patent grantedMarch 19, 2013Term endedSep 23, 2025

Sources & verification

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