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Expired Canadian patentCanada

Drive train for overhead cam engine

CA 2301298 C · Owner: Kubista, Kyle I. · Inventors: Balzar, Rodney J.; Kubista, Kyle I.; Immel, Thomas 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

A drive train for a four stroke, overhead cam engine is provided comprising a, crankshaft, connecting rod and piston assembly for reciprocating the piston within the, cylinder bore of a cylinder block. An internally profiled cam gear is driven around an, axis perpendicular to the axis of the cylinder block. A pair of follower arms extend, from a pair of rocker arms and engage the cam profile to actuate intake and exhaust, valves in the cylinder block. An intermediate gear is driven by the crankshaft at half, speed to drive the cam gear, and may also be used to drive an additional. device, such, as a combination oil pump and governor. The cam follower arms may be disposed in, an …

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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 March 17, 2000 and granted September 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 17, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 17, 2000
GrantedSeptember 24, 2002
Term endedMarch 17, 2020
Patent numberCA 2301298 C
Classification (IPC)F01L1/04 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedMarch 17, 2000Patent grantedSep 24, 2002Term endedMarch 17, 2020

Sources & verification

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