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Expired Canadian patentCanada

Metal faced soft tracks

CA 1285591 C · Owner: Smith, Francis Law · Inventors: Smith, Francis Law

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 soft track or off-road vehicle with two loops of, belting spaced laterally and joining and joined by grouser bars mounted on the outer surface of the loops extending parallel to, one another laterally across the loops and spaced from one another in a direction lengthwise of the loops is provided with facing plates mounted on the outer surface between the grouser bars but spaced from the grouser bars and extending laterally across the loops. Preferably, the facing plates are relatively thin as compared with the grouser bars are shallowly arcuate in, transverse section with their convex side facing the loop and, formed with a lip extending over and along one side edge of a loop,

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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 July 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 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.
FiledFebruary 8, 1988
GrantedJuly 2, 1991
Term endedJuly 2, 2008
Patent numberCA 1285591 C
Classification (IPC)B62D55/28 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedFeb 8, 1988Patent grantedJuly 2, 1991Term endedJuly 2, 2008

Sources & verification

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