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Expired Canadian patentCanada

Cold-formed rocker arm with bearing flanges and splash plate

CA 2018298 C · Owner: Mills, Jesse V. · Inventors: Mills, Jesse V.

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 cold-formed specifically stamped, rocker arm is disclosed. The rocker arm has a one-piece metal body of generally inverted U-shaped cross section throughout most of its length. The body has a top wall and two generally parallel side walls which extend downwardly therefrom and are structurally integral therewith. The side walls have annular extruded flanges extending outwardly therefrom and forming aligned bores to receive bearings. The rocker arm body has a recess at one end to engage an end of a push rod and a surface at the other end to engage an end of a valve stem. The top wall of the rocker arm body has a splash plate extending upwardly therefrom and the wall also has a port …

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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 June 5, 1990 and granted November 21, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 5, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 5, 1990
GrantedNovember 21, 2000
Term endedJune 5, 2010
Patent numberCA 2018298 C
Classification (IPC)F01L1/18

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 5, 1990Patent grantedNov 21, 2000Term endedJune 5, 2010

Sources & verification

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