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Expired Canadian patentCanada

Sports boot for skiers and the like

CA 1285137 C · Owner: Sisco, Hugh D. · Inventors: Sisco, Hugh D.

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 improved sports boot (10) is provided for use by snow skiers and the like, wherein the boot includes an improved boot liner (12) interposed between a substantially rigid outer boot shell (16) and the foot and lower leg region of a skier. The boot liner (12) is defined by flexible sheet material extending about selected anatomical zones of the skier's foot and lower leg region to define a plurality low vertical dimension and partially filled with a metered quantity of substantially uniform sized particulate (42). The boot liner (12) further includes a plurality of small chambers, with one of said chambers communicating with a main air discharge tube (36). When the skier's foot and lower …

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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 25, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 25, 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 10, 1988
GrantedJune 25, 1991
Term endedJune 25, 2008
Patent numberCA 1285137 C
Classification (IPC)A43B5/04 +1 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedFeb 10, 1988Patent grantedJune 25, 1991Term endedJune 25, 2008

Sources & verification

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