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Expired Canadian patentCanada

Method and apparatus for making shoe lasts and/or shoe components

CA 1311285 C · Owner: J.V. Footwear Technology, Inc. · Inventors: Shafir, Aaron

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A method and apparatus for making shoe lasts involves digitizing on the fly a large number of sample points on the outer surface of a model last representing a particular shoe style to produce a model last digital file representing the three-dimensional surface contour of the respective model last; grading the model last digital file to produce one or more graded last digital files each representing a different last size of the respective shoe style; and utilizing each of the graded last digital files to produce a graded shoe last of the respective hoe style. The invention may also be utilized for making graded components of shoes, and for modifying shoe styles or creating new shoe styles …

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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 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 8, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 7, 1988
GrantedDecember 8, 1992
Term endedDecember 8, 2009
Patent numberCA 1311285 C
Classification (IPC)A43D3/02 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedOct 7, 1988Patent grantedDec 8, 1992Term endedDec 8, 2009

Sources & verification

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