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Expired Canadian patentCanada

Bale ripper and conveyor

CA 2036053 C · Owner: Whittleton, David · Inventors: Whittleton, David; Burton, Leslie

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

The present invention provides a bale ripper and conveyor which disintegrates round bales of forage material. The bales can be loaded into the device without regard to the direction in which they are wrapped. The present invention further comprises a control box and conveyor assembly whereby the speed of operation of the device can be controlled manually and the shredded forage material can be directed to a desired location such as a mix mill.

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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

  • Filed February 8, 1991 and granted August 29, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 8, 1991
GrantedAugust 29, 2000
Term endedFebruary 8, 2011
Patent numberCA 2036053 C
Classification (IPC)A01F29/00 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedFeb 8, 1991Patent grantedAug 29, 2000Term endedFeb 8, 2011

Sources & verification

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