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Expired Canadian patentCanada

Mowing device with improved disc configuration and blade attachment

CA 1290945 C · Owner: Multinorm B.V. · Inventors: Mijnders, Gijsbert J.

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 device for mowing agricultural crops particularly, grass, is provided with an elongate mower bar that is pulled in its transverse direction over the field. The mower has a number of dish-like carriers having at least two upstanding pins adapted, to be attached with respect to the carrier a cutter blade being, releasably mounted for pivoting around each pin. The dish-like carrier is provided with a protruding arm for each pin such arm, having a front face, sloping up and backwards with respect to the, direction of rotation the pin being arranged underneath and behind that front face. The lower edge of the front face of the arm is lower or at an equal height to the cutting edge of the …

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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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 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.
FiledApril 28, 1987
GrantedOctober 22, 1991
Term endedOctober 22, 2008
Patent numberCA 1290945 C
Classification (IPC)A01D34/73

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedApril 28, 1987Patent grantedOct 22, 1991Term endedOct 22, 2008

Sources & verification

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