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Expired Canadian patentCanada

Truck auger-hopper constructions

CA 1181712 A · Owner: Niewold, Donald W. · Inventors: Niewold, Donald 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

Auger-hopper constructions for mounting to an inclinable body of a truck at the tailgate of the truck includes a pair of hoppers, one of which is stationarily and removably mounted to the truck, and the second of which is pivotally mounted to the first hopper adjacent an opening in the bottom of the first hopper. The second hopper also includes an opening adjacent its bottom at which an auger tube is swivelly mounted. The auger tube by virtue of, the pivotal and swivel mountings is pivotable in a 90°, arc in a plane perpendicular to the axis of the pivotal movement and is swivelable in a 180° arc in a plane which is parallel to the axis of the pivotal movement. Both the first and second …

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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 January 29, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 24, 1982
GrantedJanuary 29, 1985
Term endedJanuary 29, 2002
Patent numberCA 1181712 A
Classification (IPC)B60P1/04 +1 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedAug 24, 1982Patent grantedJan 29, 1985Term endedJan 29, 2002

Sources & verification

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