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Expired Canadian patentCanada

Fork lift

CA 1320929 C · Owner: Teledyne Princeton, Inc. · Inventors: Thompson, Thomas K.; Schumacher, Kenneth E.

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 fork lift truck includes a generally U-shaped frame having a pair of hydraulic driven wheels on the front end and a caster on the back end. A mast projects upwardly from the frame and is designed to move between the forward end of the vehicle and a retracted position behind the front wheels. A carriage is mounted on the forward end of the mast and reciprocates upwardly and downwardly on the mast in response to chains connected to a hydraulically driven piston which is mounted on the mast.

Read the whole patent

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.
FiledSeptember 27, 1989
GrantedAugust 3, 1993
Term endedAugust 3, 2010
Patent numberCA 1320929 C
Classification (IPC)B66F9/06 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedSep 27, 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.