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Expired Canadian patentCanada

Omnidirectional motorized wheelchair

CA 1190863 A · Owner: Koyu Enterprise, Inc. · Inventors: Noda, Takeo; Tsunaki, Ichiro

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure, An omnidirectional motorized wheelchair having front wheels consisting of a pair of free wheels and rear, wheels consisting of motor-operated wheels driven by electric motors independently of each other. This wheelchair can be moved forward and backward turned to right, and left, and turned in a fixed position. The motor-operated wheels are moved pivotally in the opposite directions by a steering unit to set these wheels to face in the lateral direction with respect to the rider. Thus the wheelchair, can be moved in the lateral direction with the rider facing forward, and it can also be turned while it is moved in the lateral direction.

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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 23, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 23, 1982
GrantedJuly 23, 1985
Term endedJuly 23, 2002
Patent numberCA 1190863 A
Classification (IPC)A61G5/04 +1 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJuly 23, 1982Patent grantedJuly 23, 1985Term endedJuly 23, 2002

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.