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Expired Canadian patentCanada

Metal cutting shear and adapter for mounting on a backhoe

CA 1249549 A · Owner: Allied Gator, Inc. · Inventors: Ramun, John; Ramun, Michael

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 material handling and metal shear attachment for a backhoe has an adapter enabling the shear attachment to be mounted on a boom or dipstick of any one of a number of different backhoes for actuation by the hydraulic system of the backhoe. A fixed blade is secured to the adapter and a movable cutting blade is pivoted to the fixed blade a hydraulic piston and cylinder assembly mounted on the fixed blade moves the movable cutting blade in shearing relation to the fixed blade. The fixed and movable blades are shaped and positioned relative to their pivotal engagement to move objects being sheared towards the blades pivotal engagement rather than away therefrom.

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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 January 31, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 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.
FiledApril 9, 1986
GrantedJanuary 31, 1989
Term endedJanuary 31, 2006
Patent numberCA 1249549 A
Classification (IPC)E02F3/41 +2 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedApril 9, 1986Patent grantedJan 31, 1989Term endedJan 31, 2006

Sources & verification

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