Chair
CA 1208115 A · Owner: Wilkhahn, Wilkening & Hahne G.M.B.H. & Co. · Inventors: Suhr, Heinz-Peter W.; Wiesmann, Herbert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An office chair including a seat portion a backrest portion joined, to the seat portion in an articulated or flexible fashion and an under-, frame. The seat portion is articulatingly supported in an area of a, forward edge thereof, on a front bearing pipe and the backrest portion is supported approximately at a hip level through supporting levers on a horizontally extending supporting shaft disposed below the seat portion at a distance therefrom so that solely by shifting one's weight the, inclination of the backrest portion and seat portion can be varied. A locking mechanism, which may be conveniently manipulated from a sitting position and which does not impair the overall appearance of …
Read the whole patent
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 July 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 2003.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.