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Expired Canadian patentCanada

Electric power supply device for mobile vehicular apparatus with aerial cabin having force feedback manipulator

CA 2030198 C · Owner: Kabushiki Kaisha Aichi Corporation · Inventors: Fujimoto, Mineyuki; Tsurumaki, Kouichi

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

An electric power supply device on a mobile vehicular apparatus includes an AC generator, a rectifier connected to the AC generator, for rectifying an electric current generated by the AC generator, a regulator connected to the rectifier, for maintaining the voltage with respect to the rectified electric current at a constant level, the regulator being connected to a power line for transmitting the electric current at the constant-level voltage to a DC electric actuator on a master control arm, and a battery connected to the power line. The master control arm controls a slave manipulator arm for processing or handling a workpiece. When the DC electric actuator is subjected to a large load …

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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 November 16, 1990 and granted August 20, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 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.
FiledNovember 16, 1990
GrantedAugust 20, 1996
Term endedNovember 16, 2010
Patent numberCA 2030198 C
Classification (IPC)H02M7/06 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedNov 16, 1990Patent grantedAug 20, 1996Term endedNov 16, 2010

Sources & verification

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