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Expired Canadian patentCanada

Unitary rear axle housing and method for manufacturing same

CA 2557211 C · Owner: U.S. Manufacturing Corporation · Inventors: Bulic, John; Main, James

CIPO record

Overview

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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 for manufacturing a one piece axle tube housing with an integral spindle includes providing a tube blank providing the blank with a region of increased thickness inserting a mandrel having a reduced diameter profile passing a reducing die over the tube to conform the tube to the shape of the mandrel; and extraction of the mandrel from the tube to cause outward deformation of the tube at specific locations. A further swaging step may be used to form the final spindle structure.

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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

  • Filed August 25, 2006 and granted December 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 25, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 25, 2006
GrantedDecember 24, 2013
Term endedAugust 25, 2026
Patent numberCA 2557211 C
Classification (IPC)B21D53/90 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedAug 25, 2006Patent grantedDec 24, 2013Term endedAug 25, 2026

Sources & verification

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