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Expired Canadian patentCanada

Tire-located track

CA 1215735 A · Owner: Mcintosh, Lawrie G. · Inventors: Mcintosh, Lawrie G.

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

An add-on track system for an all-terrain vehicle is disclosed. ATV tires are very soft and flexible, and apt to climb out of a track if the track is not properly located. The invention has a track segment with arms protruding up from the slope-plate of the segment, and the arms converge inwards. The upper ends of the arms locate the segment against the tire side walls, but at a level on the sidewalls where the tire profile is free of the bulging under load which is so marked in ATV tires. The segments have holes through the sole-plate, through which the overhanging parts of the converging arms can be moulded without movable cores. Retractable cleats occupy these holes, and are forced out …

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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 23, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 23, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 29, 1984
GrantedDecember 23, 1986
Term endedDecember 23, 2003
Patent numberCA 1215735 A
Classification (IPC)B62D55/18 +2 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedAug 29, 1984Patent grantedDec 23, 1986Term endedDec 23, 2003

Sources & verification

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