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Expired Canadian patentCanada

Mid shield bearing support for an electric motor

CA 2547408 C · Owner: Johnson, Philip Wayne · Inventors: Bair, Donald E.; Archer, William A.; Wright, Kamron Mark

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 electric motor includes a motor enclosure a motor-bearing assembly, a motor control unit a mid shield, and a bearing. The motor-bearing assembly is configured for placement within the motor enclosure and has a shaft extending therefrom. A portion of the motor control unit is configured for placement within the motor enclosure. The mid shield is configured for placement within the motor enclosure between the motor control unit and the motor-bearing assembly and further configured to engage the shaft. The bearing is configured to seat within the mid shield and provide at least a portion of the engagement between the shaft and the mid shield.

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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 May 19, 2006 and granted July 21, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 19, 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.
FiledMay 19, 2006
GrantedJuly 21, 2015
Term endedMay 19, 2026
Patent numberCA 2547408 C
Classification (IPC)H02K5/04 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 19, 2006Patent grantedJuly 21, 2015Term endedMay 19, 2026

Sources & verification

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