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Expired Canadian patentCanada

Seat back adjustment

CA 2547601 C · Owner: Sato-Office Gmbh · Inventors: Erker, Christian

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

The invention concerns an arrangement for adjusting the seat back inclination of a seat into an optimum individual inclination position without manipulation or motor aids, which is characterised in that it comprises a sensor system for ascertaining the weight of the user of the seat and transfer of the result to a resilient element by way of which the sensor system result is transmitted to the seat back limbs.

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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 December 2, 2004 and granted November 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 2, 2024.
  • 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.
FiledDecember 2, 2004
GrantedNovember 27, 2012
Term endedDecember 2, 2024
Patent numberCA 2547601 C
Classification (IPC)A47C1/02 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 2, 2004Patent grantedNov 27, 2012Term endedDec 2, 2024

Sources & verification

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