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Expired Canadian patentCanada

A chair for eliminating problems of sedentary origin

CA 2438522 C · Owner: Easydoing Oy · Inventors: Jalkanen, Veli-Jussi

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 present invention relates to a chair to eliminate problems of sedentary origin, in which method the pelvis and the thigh muscles of the seated person are , supported while sitting by means of side parts which at least partially curve downwards forming a saddle-shaped seat part. In the method in accordance with the , invention the side parts of the seat part are formed of at least two parts between , which a central opening longitudinal with the seat part is formed.

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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 February 14, 2002 and granted November 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 14, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 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.
FiledFebruary 14, 2002
GrantedNovember 26, 2013
Term endedFebruary 14, 2022
Patent numberCA 2438522 C
Classification (IPC)A47C7/02

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedFeb 14, 2002Patent grantedNov 26, 2013Term endedFeb 14, 2022

Sources & verification

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