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Expired Canadian patentCanada

Adjustable hold down for the sickle of a reciprocating cutter assembly

CA 1290946 C · Owner: O'Halloran, Michael Lee · Inventors: O'Halloran, Michael Lee

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 Invention, A hold down for retention of reciprocable sickles of cutter assemblies is characterized by its inflexibility and provision of adjustability in relation to the cutter bar such as to preclude undue movement of the sickle sections away from their normal scissors-like cutting positions in cooperation with the sickle guards on the cutter bar. A strong, massive hold down body permits minimum running clearance of the sickle beneath wear pads on forwardly extending fingers integral with the body. After adjustment of a extensible bolt and nut assembly between the hold down and the cutter bar and clamping of the hold down to the cutter bar, essentially trouble-free use can …

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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.
FiledOctober 3, 1984
GrantedOctober 22, 1991
Term endedOctober 22, 2008
Patent numberCA 1290946 C
Classification (IPC)A01D34/13 +1 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedOct 3, 1984Patent 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.