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Expired Canadian patentCanada

Conservation implement including a shredder

CA 2216262 C · Owner: Huerta, Jesus Esteban Garza · Inventors: Huerta, Jesus Esteban Garza; Villanueva, Jose Rafael Garcia; Gomez, Pompeyo Jaime Benavides

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 conservation tillage implement including a shredder with a transverse rotor hood structure having one-piece end panels which are welded to each side of the hood and project rearwardly of the hood to receive a toolbar which extends the width of the implement. The center of the toolbar is connected to a pair of parallel upright central panels which are connected to the central rear portion of the hood. A reinforcing member extends from the central rear portion between the central panels around the top of the hood adjacent the hitch structure which connects the implement to a tractor. The end and central panels and reinforced hood structure define a compact unobtrusive frame which is sturdy …

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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 October 10, 1997 and granted August 21, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 10, 1997
GrantedAugust 21, 2001
Term endedOctober 10, 2017
Patent numberCA 2216262 C
Classification (IPC)A01B49/04 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedOct 10, 1997Patent grantedAug 21, 2001Term endedOct 10, 2017

Sources & verification

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