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Expired Canadian patentCanada

Vehicle track shoe with reinforcing grouser

CA 1285013 C · Owner: Connerley, James J. · Inventors: Connerley, James 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 strong, light-weight track shoe for use with a track-laying vehicle. The shoe includes a cast body portion having three bored lug segments spaced along the front of the shoe and a pair of bored rear lugs segments spaced along the rear of the shoe. The cast body portion has a fin-like guide member for engagement with sprocket and bogey wheels. Pairs of reinforcing ribs extend lengthwise along the shoe which form the longitudinal sides of sprocket tooth engaging openings. A single grouser extends along the width of the shoe to reinforce the body portion and to provide traction between the shoe and ground as the vehicle moves along a terrain. The grouser member and the rear lugs form the …

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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 18, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 18, 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.
FiledMay 13, 1987
GrantedJune 18, 1991
Term endedJune 18, 2008
Patent numberCA 1285013 C
Classification (IPC)B62D55/20 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMay 13, 1987Patent grantedJune 18, 1991Term endedJune 18, 2008

Sources & verification

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