Chair
CA 1294524 C · Owner: Giroflex Entwicklungs Ag · Inventors: Locher, Hermann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The chair has a seat equipped with a balance and its linkage has links fixed in articulated manner to a support arm and to which there is articulated a balance or rocker device in parallelogram-like manner. A slide is slidingly guided on the balance device and is connected by means of a thrust or connecting rod to an extension arm of the back-rest region link. The slide is also connected to one end of a spring element the other, end of which is supported on the balance device. The linkage structure is supported on the backrest by means of a backrest strut articulated to the slide. The seat and backrest portions of the chair frame can be constructed as a plastic shell with a knee-side …
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 January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 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.
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.