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Expired Canadian patentCanada

Upholstered article of furniture with interchangeable seating module

CA 2021817 C · Owner: Mork, William J. · Inventors: Mork, William J.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An upholstered article of furniture (a0) comprises a frame (26j, assorted layers of padding and fabric that form upholstery (27), a backrest (29), armrests (31) cushions (33), and a seating module (10). The seating module (10) comprises a front rail (12), a beak rail (14), a spring assembly (16) mounted upon the rails (12, 14), and a covering (18). The seating module (10) may be removed from and installed into a game (26) of an article of furniture (20) as a complete unit by means of screws or other suitable attaching means. Seating modules of different seating firmness may be interchanged (based upon consumer comfort preferences arid medicinal requirements). The pitch (or tilt) of the …

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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 July 24, 1990 and granted September 26, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 24, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 24, 1990
GrantedSeptember 26, 2000
Term endedJuly 24, 2010
Patent numberCA 2021817 C
Classification (IPC)A47C17/04

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJuly 24, 1990Patent grantedSep 26, 2000Term endedJuly 24, 2010

Sources & verification

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