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Expired Canadian patentCanada

Three-piece stamp formed connector for achieving equal length exhaust pipes

CA 2129578 C · Owner: Baxter, Colette · Inventors: Baxter, Colette; Roberts, John

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 connector is provided for joining two upstream exhaust pipes with a downstream exhaust pipe and for substantially offsetting any difference in length that may exist in the upstream exhaust pipes. The connector includes first and second external shells that are secured on opposite respective sides of an internal divider plate. The external shells and internal plates cooperate to define unequal travel lengths within the connector to offset the unequal travel lengths of the upstream exhaust pipes leading to the connector. The two separate exhaust flows with travel lengths equalized by the connector converge with one another into a chamber defined by the connector, and exit from the connector …

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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 5, 1994 and granted May 30, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 5, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 5, 2016.
  • 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 5, 1994
GrantedMay 30, 2000
Term endedAugust 5, 2014
Patent numberCA 2129578 C
Classification (IPC)B60K13/04 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedAug 5, 1994Patent grantedMay 30, 2000Term endedAug 5, 2014

Sources & verification

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