Office chair
CA 2525902 A1 · Owner: Watson, Ronnie K. · Inventors: Bach, James W.; Inman, Christopher G.; Chapman, Anthony K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A chair having an adjustable resilient back recliner mechanism a pair of, adjustable armrests, modular upper back portions and an adjustable lumbar support. The chair, includes a tension control that adjusts the tension in the recliner mechanism. The tension, control is cam-operated to permit adjustment throughout the entire range of adjustability with, only limited rotational movement of a control knob. The chair includes a recline limit control, that adjusts the limit of rearward movement in the recliner mechanism. The limit control, includes a cable operated stop that interact with a stepped trackway on the seat. The chair, further includes a height control for adjusting the seat …
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
- Filed January 22, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2024.
- 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.