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Expired Canadian patentCanada

Annular speed sensor with strain relief

CA 2103124 C · Owner: Eaton Corporation · Inventors: Caron, Laverne A.

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

An in-axle shaft speed sensor has an annular configuration and is attached to the axle differential bearing adjustment ring. An annular sensor housing ring, has a radially inwardly extending flange with inwardly cantilevered tabs formed, therein for absorbing by localized axial deflection the clamping loads of attachment screws. The stator ring is configured for an axial air flux gap with, the rotor poles and is axially adjacent the housing ring and has cut-outs therein to, permit free deflection of the tabs and prevents axial distortion of the stator ring, and mis-alignment of the poles.

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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 November 15, 1993 and granted September 28, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 15, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 15, 1993
GrantedSeptember 28, 1999
Term endedNovember 15, 2013
Patent numberCA 2103124 C
Classification (IPC)G01P3/48 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedNov 15, 1993Patent grantedSep 28, 1999Term endedNov 15, 2013

Sources & verification

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