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Expired Canadian patentCanada

Backhoe vehicle

CA 1293224 C · Owner: Takashima, Akira · Inventors: Takashima, Akira; Shimoie, Shizuo

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 backhoe vehicle comprising an engine and a driver's seat disposed rearwardly of an oil passage defining rotary joint of a swivel platform rotatably mounted through bearings on a stationary support of a chassis, a swivel guide gear attached to the stationary support, a swivel pinion meshed with the swivel guide gear, a motor for driving the swivel pinion to rotate the swivel platform, and traveling control valves and backhoe control valves mounted in a control box disposed on the swivel platform forwardly of the rotary joint. The motor is disposed below the traveling control valves and the backhoe control valves. The backhoe vehicle further comprises a driver's deck having a bent …

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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 December 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 2008.
  • 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 23, 1987
GrantedDecember 17, 1991
Term endedDecember 17, 2008
Patent numberCA 1293224 C
Classification (IPC)B62D33/07 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedNov 23, 1987Patent grantedDec 17, 1991Term endedDec 17, 2008

Sources & verification

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