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Expired Canadian patentCanada

Non-invasive probe for detecting medical conditions

CA 2441973 C · Owner: Schnall, Robert P. · Inventors: Schnall, Robert P.

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 non-invasive probe (10) for application to a body part such as a finger, toe or limb, for the detection of a medical condition of the subject includes a housing defining a compartment closed at one end and open at the opposite end for receiving the distal end of the subject's body part including its terminal-most extremity, a sensor (30) for sensing a predetermined condition of the body part after being received within the compartment and a removable , liner (41/42) lining the inner surface of the housing to facilitate the , insertion of the body part into the compartment. The described probe (10) is one which senses changes in the peripheral arterial tone as manifested by changes …

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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 March 26, 2002 and granted August 6, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 26, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 26, 2002
GrantedAugust 6, 2013
Term endedMarch 26, 2022
Patent numberCA 2441973 C
Classification (IPC)A61B5/00 +1 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMarch 26, 2002Patent grantedAug 6, 2013Term endedMarch 26, 2022

Sources & verification

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