Hinge yoke for standup wheelchair armrest and wheelchair incorporating said hinge yoke
CA 2275977 C · Owner: I.D.C. Medical · Inventors: Porcheron, Francois
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Wheelchair for the disabled. The hinge yoke includes: a half-yoke for the back (32) adapted on a upright on the back of the structure and bearing a pivoting axis a half-yoke for the arm rest (33) mounted to turn on the pivoting axis and delimiting a bore (55) which receives the cylindrical tail (56) of a bent arm rest (26) upon rotation - and the means (41, 63, 64) interposed between the half-yokes to ensure that the tail is locked angularly either in an essentially vertical position or in an essentially horizontal position of the bent arm rest. Application to lift chairs.
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 June 22, 1999 and granted May 6, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2021.
- 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.