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Expired Canadian patentCanada

Tractor hitch assembly

CA 1320979 C · Owner: Olson, Brian R. · Inventors: Olson, Brian R.

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 hitch fox connecting the tongue of a towed vehicle to a drawbar on a towing vehicle is manually operated from the cab of the towing vehicle. The drawbar is of the double-tongue type that receives the trailer tongue between two drawbar arms. A draw pin is maintained on an arm below drawbar and pivots upwardly to couple the drawbar and tongue. The operating mechanism includes a manual actuator in the cab and a mechanical or hydraulic power transmission joining the actuator to the pin setting or pulling mechanism.

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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 August 3, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 3, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 15, 1989
GrantedAugust 3, 1993
Term endedAugust 3, 2010
Patent numberCA 1320979 C
Classification (IPC)B60D1/00 +1 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJune 15, 1989Patent grantedAug 3, 1993Term endedAug 3, 2010

Sources & verification

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