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Expired Canadian patentCanada

Master slave manipulator system

CA 2000818 C · Owner: Takarada, Shinichi · Inventors: Yamamoto, Hiroshi; Aoki, Tatsu; Takarada, Shinichi

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 master slave manipulator system includes a master arm having six or more axes of motion and a jointed slave arm having six or more axes of motion. The master arm has an arm body and a wrist assembly connected to the arm body. The wrist assembly of the master arm is constructed such that a space having predetermined dimensions in X, Y and Z directions is formed around a gripper by disposing a pitch- axis a, yaw-axis and a roll-axis thereof outside of the space and by directing output axes of the pitch-axis the yaw-, axis, and the roll-axis toward the gripper. The slave arm has a wrist assembly which is constructed such that a pitch-axis, a yaw-axis and a roll-axis are accommodated within a …

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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 October 16, 1989 and granted February 1, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 16, 1989
GrantedFebruary 1, 1994
Term endedOctober 16, 2009
Patent numberCA 2000818 C
Classification (IPC)B25J9/00 +1 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedOct 16, 1989Patent grantedFeb 1, 1994Term endedOct 16, 2009

Sources & verification

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