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Expired Canadian patentCanada

Rasp bars for directing crop into an axial separator

CA 2061398 C · Owner: Coers, Bruce Alan · Inventors: Coers, Bruce Alan

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

An agricultural combine having a transverse threshing cylinder and a pair of axial separator units wherein the angled flighting on the rasp bars of the threshing cylinder are arranged to assist in directing the harvested crop material to the inlets of the axial separator units during a threshing operation. The left hand and right hand angled flighting sections assist in forming two crop streams that are aligned with the inlets for the axial separator units.

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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 18, 1992 and granted October 11, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 18, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 2014.
  • 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 18, 1992
GrantedOctober 11, 1994
Term endedFebruary 18, 2012
Patent numberCA 2061398 C
Classification (IPC)A01F12/10 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedFeb 18, 1992Patent grantedOct 11, 1994Term endedFeb 18, 2012

Sources & verification

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