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Expired Canadian patentCanada

Belted grain accelerator for a threshing machine

CA 1288657 C · Owner: Coers, Bruce A. · Inventors: Turner, Reed J.; Coers, Bruce A.

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

Abstract of the Disclosure, A gull wing shaped diverted is positioned in an opening between two oppositely rotated endless belted conveyors having transverse paddles for propelling grain and chaff falling from the threshing and separating means downwardly. A blower means forms a substantially horizontal air stream that is directed against the substantially downwardly propelled gain and chaff to separate the lighter chaff from the heavier grain. The blower can comprise one fan assembly or two and provide an air stream to the cleaning shoe assembly.

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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

  • Granted September 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 10, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 4, 1988
GrantedSeptember 10, 1991
Term endedSeptember 10, 2008
Patent numberCA 1288657 C
Classification (IPC)A01F12/30 +1 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedMay 4, 1988Patent grantedSep 10, 1991Term endedSep 10, 2008

Sources & verification

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