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Expired Canadian patentCanada

Electrostatically dissipative fuel filter

CA 2089647 C · Owner: Martin, James W. · Inventors: Danowski, Daniel R.; Pereira, James S.; Martin, James W.

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 fuel filter for a motor vehicle includes a housing made of a base Nylon 12 material to which are added stainless steel fibers to render the housing electrically conductive while retaining moldability. The electrically conductive housing permits charges generated by the fuel passing through the filtering media to be dissipated to the vehicle body, thereby preventing erosion of the housing and subsequent leaks.

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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, 1990 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 15, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 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.
FiledNovember 15, 1990
GrantedApril 17, 2001
Term endedNovember 15, 2010
Patent numberCA 2089647 C
Classification (IPC)B01D35/30 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedNov 15, 1990Patent grantedApril 17, 2001Term endedNov 15, 2010

Sources & verification

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