Patent Yard Sign in
Expired Canadian patentCanada

Harvester-thresher with an apparatus to spread the grain-chaff mixture

CA 1296964 C · Owner: Glaubitz, Franz · Inventors: Glaubitz, Franz; Harig, Horst

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A harvester-thresher has an apparatus to spread the grain-chaff mixture that comes from the sieve box over the whole width of the cutter swath which as is, known, is considerably wider than the actual harvesterthresher. To this end, the housing, which encloses the discs with the spreader bars on the periphery and on a face side, defines an additional air-inlet opening so, that a partial vacuum is formed in the area of the spreader bars, this partial vacuum drawing the grain-chaff mixture into the spreader apparatus.

Read the whole patent

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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
  • 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 15, 1988
GrantedMarch 10, 1992
Term endedMarch 10, 2009
Patent numberCA 1296964 C
Classification (IPC)A01F29/12 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedFeb 15, 1988Patent grantedMarch 10, 1992Term endedMarch 10, 2009

Sources & verification

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