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Expired Canadian patentCanada

Off-highway vehicle

CA 1109902 A · Owner: Goodbary Engineering Co. · Inventors: Goodbary, Edgar R.; Bartley, Francis A.

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

An off-highway dump vehicle of the bottom-dump two axle type having a single wheel in all positions; an A-frame front suspension which provides large steering angles for the vehicle wheels; an A-frame rear suspension system separate from the front suspension system; a dual braking system comprising primary and secondary brakes actuated by a a common brake pedal and arranged wherein the secondary brakes are automatically actuated upon failure of the primary brakes for any reason; the vehicle structrual elements being pinned together for facilitating assembly and disassembly thereof for shipment of the vehicle to the site of operation thereof; the vehicle load in the rear is carried directly …

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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 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 1998.
  • 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 22, 1977
GrantedSeptember 29, 1981
Term endedSeptember 29, 1998
Patent numberCA 1109902 A
Classification (IPC)B62D7/00

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedNov 22, 1977Patent grantedSep 29, 1981Term endedSep 29, 1998

Sources & verification

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