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Expired Canadian patentCanada

Harvester reel rake bar

CA 1289755 C · Owner: Abramov, Vsevolod V. · Inventors: Kotenko, Alexandr F.; Yarmashev, Jury N.; Rysin, Nikolai I.

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

The distinguishing feature of the invention resides in the fact that each tine of the rake bar is configured in the cross-section as an isosceles triangle with a working edge defined by a vertex of an angle between the lateral sides in the direction of rotation of the reel, and in the zone of the vertex the, working edge of the tine is defined by the base of the isosceles triangle. A portion of each tine between its vertex a fastener member for attaching the tine to the bat blade is curvilinear and has a longitudinal slot.

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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 1, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 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.
FiledOctober 14, 1988
GrantedOctober 1, 1991
Term endedOctober 1, 2008
Patent numberCA 1289755 C
Classification (IPC)A01D57/02

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedOct 14, 1988Patent grantedOct 1, 1991Term endedOct 1, 2008

Sources & verification

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