Wheelchair controls
CA 1058727 A · Owner: Biddle Engineering Company Limited · Inventors: Brown, Robert E.; Hatfield, Raymond
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control unit for a motorized wheelchair for an invalid the control unit having a part engageable with the occupants chin an being movable in a first direction in order to cause movement of the wheelchair in a forwards direction and in a second and third direction to steer the wheelchair either to the left or to the right an on/off, and reverse/forward switch being provided operable by the occupants head.
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
- Granted July 17, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 17, 1996.
- 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.