Motorized wheelchair
CA 2254372 A1 · Owner: Geiger, Richard · Inventors: Geiger, Richard; Clark, Ivan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A motorized wheelchair having a frame, with a front back and, opposed sides is disclosed. The frame includes an upper seat mounting portion and at least one rear ground engaging castor wheel. A pair of pivoting lower carriages are provided which are attached to the frame by means of a forward pivot point and a biasing element remote from the forward pivot point. A ground engaging drive wheel is provided for each carriage portion with a motor operatively connected thereto. Also provided are anti-tip wheels which are mounted to the pivoting carriage. In one embodiment the anti-tip wheels are mounted on an arm pivotally mounted to said pivoting carriage. In another embodiment the anti-tip …
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 17, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 17, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 2020.
- 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.