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Expired Canadian patentCanada

Bale grinder

CA 2531729 C · Owner: Duratech Industries International, Inc. · Inventors: Hoovestol, Russell J.

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 machine for grinding forage material includes a support frame that supports an enclosure for retaining a bale of forage material. A rotary shredder is positioned within the enclosure where the rotary shredder grinds the bale of forage material and discharges a forage material from the enclosure. The machine includes at least two deflectors attached to the enclosure that deflect the shredded forage material onto a surface where the at least two deflectors are positionable independent from each other.

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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 December 28, 2005 and granted August 13, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 28, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 28, 2005
GrantedAugust 13, 2013
Term endedDecember 28, 2025
Patent numberCA 2531729 C
Classification (IPC)A01F29/12 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 28, 2005Patent grantedAug 13, 2013Term endedDec 28, 2025

Sources & verification

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