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Expired Canadian patentCanada

Crop processing element for a rotary combine

CA 2553475 C · Owner: Kuchar, George J. · Inventors: Kuchar, George J.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An apparatus and method for improving the ability of a rotary combine to gently thresh a crop and to gently convey the crop through the threshing section of the combine. In a preferred embodiment the invention is a crop engaging element for the rotor of a rotary combine said crop engaging element comprising: a mounting structure having a ramp portion terminating in a top portion; a rasp bar comprising a base having a bottom surface and a curved convex top surface and a plurality of fins extending from said top surface; a leading mounting flange and a trailing mounting flange that extend from the mounting structure for mounting the crop engaging element to the rotor.

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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 July 25, 2006 and granted December 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 25, 2026.
  • 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.
FiledJuly 25, 2006
GrantedDecember 10, 2013
Term endedJuly 25, 2026
Patent numberCA 2553475 C
Classification (IPC)A01D41/12 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJuly 25, 2006Patent grantedDec 10, 2013Term endedJuly 25, 2026

Sources & verification

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