Movable chair
CA 2067937 C · Owner: Ochiai, Shigeyoshi · Inventors: Ochiai, Shigeyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A movable chair includes a chair main body and a pair of left and right traveling devices. The chair main body has a seat portion. The traveling devices are disposed on left and right sides of the chair main body and are designed to move the chair main body while supporting the chair main body. The traveling devices includes traveling frames disposed along a traveling direction, endless rail portions respectively disposed around the traveling frames, endless tracks respectively wound around the endless rail portions a driving, section for driving the endless tacks and a control, section for allowing a sitting person to control the driving section. The endless tracks includes endless driving …
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 May 4, 1992 and granted July 26, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2014.
- 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.