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Expired Canadian patentCanada

Device for attaching working machine to vehicle

CA 1322993 C · Owner: Aoki, Tuyoshi · Inventors: Ishiguro, Toshio; Aoki, Tuyoshi

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 device for attaching a working machine to a vehicle in which a heavy weight working machine can be detachably and fixedly attached to the vehicle and a three point link type working machine can also be attached through a three points linking mechanism when the heavy workin machine is not attached to the vehicle. The device includes an attachment frame at a rear portion of the vehicle body and a working, machine connecting portion for attaching the heavy weight working machine. Further, a three point link connecting portion for connecting the three point linking mechanism are provided at the attachment frame.

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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 October 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 12, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 23, 1989
GrantedOctober 12, 1993
Term endedOctober 12, 2010
Patent numberCA 1322993 C
Classification (IPC)E02F3/28 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedMay 23, 1989Patent grantedOct 12, 1993Term endedOct 12, 2010

Sources & verification

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