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Expired Canadian patentCanada

Orthotic insert

CA 1253002 A · Owner: Northwest Podiatric Laboratory, Inc. · Inventors: Brown, Dennis N.

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 orthotic insert formed of a plurality of layers bonded to one another. Some of the layers are made from fiberglass reinforced plastic, having the fibers oriented at 45° from the longitudinal axis. At least one of the layers is made of parallel graphite fibers having an, axis of orientation offset from the longitudinal axis of the insert.

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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 April 25, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 25, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 2, 1986
GrantedApril 25, 1989
Term endedApril 25, 2006
Patent numberCA 1253002 A
Classification (IPC)A43B7/00 +2 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedApril 2, 1986Patent grantedApril 25, 1989Term endedApril 25, 2006

Sources & verification

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