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Expired Canadian patentCanada

Mechanism for raising and lowering a seat, especially designed for handicapped persons

CA 1193569 A · Owner: Flemming Hvidt Mýbelarkitektfirma A/S · Inventors: Pontoppidan, Eskild

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 mechanism for raising and lowering a seat especially designed for handicapped persons comprises two, supporting arms which are both at one of their ends coupled to the seat, at the front and rear edge thereof respectively. At their other end, the supporting arms each cooperate with a fixed point. At least one of the supporting arms is coupled to a driving member and thetwo supporting arms are interconnected at a point between their ends. With a view to obtaining a space-saving but stable mechanism allowing a physiologically correct trajectory of the seat during its raising and lowering, the supporting arms are directly pivotally interconnected, and one of the supporting arms cooperates …

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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 September 17, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 22, 1982
GrantedSeptember 17, 1985
Term endedSeptember 17, 2002
Patent numberCA 1193569 A
Classification (IPC)A47K17/00 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJan 22, 1982Patent grantedSep 17, 1985Term endedSep 17, 2002

Sources & verification

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