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Expired Canadian patentCanada

Welting for a shoe

CA 1251639 A · Owner: Red Wing Shoe Company, Inc. · Inventors: Eckstrom, Delano

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 welt is disclosed for shoes having outer soles formed by means of a foaming process. The welt includes a substantially horizontal outsole attaching member having a bottom surface for joining to a shoe outsole. An inseam portion is provided integral with the outsole attaching member along an inner end of the outsole attaching member. A stitch receiving groove is defined by opposing surfaces of the inseam attaching portion and the bottom surface of the outsole attaching member. A hook portion is integral with the outsole attaching member and extends vertically downwardly from the bottom surface along the inner end with the hook portion defining a foam receiving groove beneath the bottom …

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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 March 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 28, 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.
FiledSeptember 11, 1986
GrantedMarch 28, 1989
Term endedMarch 28, 2006
Patent numberCA 1251639 A
Classification (IPC)A43B15/00 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedSep 11, 1986Patent grantedMarch 28, 1989Term endedMarch 28, 2006

Sources & verification

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