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Expired Canadian patentCanada

Snowplow and implement attachment means for a vehicle

CA 1300877 C · Owner: Niemala, W. Wally · Inventors: Quenzi, Philip J.

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 hinged snowplow includes a T-shaped support frame for attachment to a vehicle, the support frame having a free end. A cowling having a pair of extending plow blades pivotally secured thereto, is pivotally secured to the free end so as to pivot in a generally vertical plane about the free end. The cowling has a first stop engageable with the support frame to limit pivotal movement of the cowling about the frame to a first or normal plowing position. A second stop on the cowling is engageable with the support frame to limit the pivotal movement of the cowling about the frame to a second or tipped position. A trip bias mechanism between the frame and the cowling biases the cowling and plow …

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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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 24, 1986
GrantedMay 19, 1992
Term endedMay 19, 2009
Patent numberCA 1300877 C
Classification (IPC)E01H5/04 +1 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedJuly 24, 1986Patent grantedMay 19, 1992Term endedMay 19, 2009

Sources & verification

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