Dismountable wheel-chair
CA 2045476 C · Owner: Soto, Pierre Jose · Inventors: Soto, Pierre Jose
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a wheel-chair of the type comprising two large carrier wheels (1) mounted on either side of a central frame of which one part supports a seat (3) and another part forms a foot-rest (4) provided with steering wheels (5). According to the invention, the rim (8) carrying the tyre (10) forms the outside ring of a peripheral ball bearing of which the inner ring (7), of large diameter, has no hub shaft or spoke said frame (12a, 12b; , 4) being assembled on either side to the inner ring (7) of a respective carrier wheel by releasable securing means.
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 November 27, 1990 and granted July 3, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2012.
- 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.