Adjustable standard for swivel chair
CA 1061697 A · Owner: Herman Miller · Inventors: Wolters, Richard H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A supporting spindle for a chair is disclosed which can be shifted from a mode in which the height of the seat is adjusted by rotating the seat while the seat is unoccupied to a mode in which the seat can be rotated in either direction without effecting any change in vertical position when the seat is occupied. The change in mode is effected by the release of a lock when the spindle is downwardly telescoped against the bias of a spring by the weight of the seat's occupant. - 1 -
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 September 4, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 4, 1996.
- 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.