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Expired Canadian patentCanada

Transfer system for plastic processing machines

CA 1256050 A · Owner: Honda Giken Kogyo Kabushiki Kaisha · Inventors: Ookubo, Takeshi; Shiraishi, Motoatsu; Tazuo, Ken

CIPO record

Overview

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

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Abstract From the Canadian patent

A transfer system for moving workpieces between a plurality of processing stations in sequential order. A pair of guide rails extend in a workpiece transferring direction on opposed sides of the stations and are movable up and down by a driving mechanism. A plurality of arm carriages are movable along the guide rails and are joined to one another by longitudinally extending connecting bars. A plurality of handling arms extend laterally between opposed pairs of the carriages. All of the arm carriages are moved as a group by a carriage driving mechanism. Auxiliary guide rails can be fixed to the carriages extending in parallel with the main guide rails. The handling arms can be movable …

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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 June 20, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 2006.
  • 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 9, 1985
GrantedJune 20, 1989
Term endedJune 20, 2006
Patent numberCA 1256050 A
Classification (IPC)B65G25/04 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedOct 9, 1985Patent grantedJune 20, 1989Term endedJune 20, 2006

Sources & verification

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