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Expired Canadian patentCanada

Power steering fluid reservoir

CA 2173380 C · Owner: Mancell, Michael G. · Inventors: Mancell, Michael G.

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

This invention relates to an improved reservoir for power steering fluid which is particularly suitable for use on large vehicles such as trucks. The improved reservoir of this invention comprises a well to contain a surplus of power steering fluid. The well has an inlet to permit the introduction of fluid from a power steering mechanism into the well and an, outlet to permit the fluid to flow out of the well to the power steering mechanism. The well also has a filter attached over the inlet. The filter comprises a container having a lower chamber, a side chamber, a filter medium and a relief valve. Fluid received in the lower chamber from the inlet pipe flows to the side chamber and …

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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 April 3, 1996 and granted July 10, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 3, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 3, 1996
GrantedJuly 10, 2001
Term endedApril 3, 2016
Patent numberCA 2173380 C
Classification (IPC)B62D5/06 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedApril 3, 1996Patent grantedJuly 10, 2001Term endedApril 3, 2016

Sources & verification

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