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Expired Canadian patentCanada

Direct teaching type robot

CA 2013117 C · Owner: Okumura, Hiroshi · Inventors: Okumura, Hiroshi; Kimura, Yutaka; Matumoto, Eizi

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

A direct teaching type robot has a moving arm driven by an electric motor. The moving arm is directly moved to previously stored data corresponding to the movement of the moving arm in a robot controller and when operated as the robot the moving arm is, operated on the basis of the stored data. Power lines for the electric motor are cut off in a teaching mode in which movement positions of the moving arm are taught in the robot.

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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

  • Filed March 27, 1990 and granted October 12, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 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.
FiledMarch 27, 1990
GrantedOctober 12, 1993
Term endedMarch 27, 2010
Patent numberCA 2013117 C
Classification (IPC)G05D3/12 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMarch 27, 1990Patent grantedOct 12, 1993Term endedMarch 27, 2010

Sources & verification

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