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Expired Canadian patentCanada

Suspension system

CA 2117945 C · Owner: Holt, Laurence J. · Inventors: Holt, Laurence J.

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 suspension system with a contained force system concentrates loads in the suspension geometry control elements. This permits elimination of large heavy load bearing structures in remote areas of the vehicle use of a compact, modular structure, and combination of suspension geometry control and spring/damping in one unit. The modular suspension system for a wheeled vehicle comprises a wheel and hub assembly a relatively heavier vehicle body, an interposed energy storage medium and means to releasably store energy in the medium to any predetermined degree at any relative position between the wheel and hub assembly and the vehicle body upon relative movement between them.

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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 October 12, 1994 and granted March 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 12, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 12, 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.
FiledOctober 12, 1994
GrantedMarch 25, 2003
Term endedOctober 12, 2014
Patent numberCA 2117945 C
Classification (IPC)B60G11/00 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedOct 12, 1994Patent grantedMarch 25, 2003Term endedOct 12, 2014

Sources & verification

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