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Expired Canadian patentCanada

Axle suspension system

CA 1307800 C · Owner: Paccar Inc · Inventors: Saunders, James; Stephens, Donald L.

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

Abstract of the Disclosure A front axle suspension for a vehicle that is soft in ride and stiff in roll is provided. The front axle is coupled to a solid beam. The beam is a relatively nonflexible member. The beam is pivotally coupled at one end thereof to the frame and is freely movable at the other end thereof being coupled, to said frame through a two-shackle coupling that permits vertical displacement and prevents horizontal displacement. Two air bags are coupled between said b am and said frame. The two air bags carry substantially all the weight of the vehicle over the front axle. The two bags are designed to provide a very soft ride. The two bags are positioned longitudinally along …

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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

  • Granted September 22, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 2009.
  • 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, 1989
GrantedSeptember 22, 1992
Term endedSeptember 22, 2009
Patent numberCA 1307800 C
Classification (IPC)B60G11/26 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedMarch 17, 1989Patent grantedSep 22, 1992Term endedSep 22, 2009

Sources & verification

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