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Expired Canadian patentCanada

Arrangement in a chair

CA 1299990 C · Owner: J.E. Ekornes A/S · Inventors: Ekornes, Jostein

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 b s t r a c t, The invention relates to a device in a chair especi-, ally an adjustable chair (1aa) having an articulation means (7) between a seat member (3) a back rest member (8a), so as to allow an alteration of the angular position therebetween, the alteration taking place by pivoting said back rest member (8a) around a pivoting point (8) whilst said seat member (3) is displaced along a predetermined sliding path. The invention is characterized in that the device comprises one or more curved sliding means (1), the radius of curvature (R) of said sliding means (1) or the center (4) thereof being arranged in accordance with given functional properties of said chair (1aa), it being …

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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

  • Granted May 5, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 5, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 18, 1988
GrantedMay 5, 1992
Term endedMay 5, 2009
Patent numberCA 1299990 C
Classification (IPC)A47C1/03

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedOct 18, 1988Patent grantedMay 5, 1992Term endedMay 5, 2009

Sources & verification

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