Foldable dual-chair
CA 2359914 A1 · Owner: Tofasco Of America, Inc. · Inventors: Zheng, Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A foldable dual-chair includes a pair of seat frames and a pair of back frame constructed to support a pair of fabric seats thereon respectively wherein a connecting, frame is foldably supported between the two seat frames. The connecting frame includes, a pair connecting leg posts each having an outer tube frame and an inner tube frame, upwardly extended therefrom in a vertical movable manner. So the connecting , leg posts, are capably of slidably adjusting their height in such a manner the foldable dual-chair is, capable of folding up into a compact unit for easy storage and carriage.
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 September 13, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 13, 2023.
- 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.