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Expired Canadian patentCanada

Assembly for limbing tree stems

CA 1283026 C · Owner: Osa Ab · Inventors: Forslund, Torsten

CIPO record

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

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Abstract From the Canadian patent

An assembly for limbing tree stems comprises two limbing tools (53, 53') movable towards and away from each other, and two feeding units (1 1') which, are also movable towards and away from each other and arranged for longitudinal feeding of individual stems past the limbing tools limbing the stems. Each limbing tool (53) is connected to an associated feeding unit (1) and arranged to follow this unit when moving towards and away from the stem. Further the, limbing tool is located substantially in the extension of the contact surface of the feeding unit with respect to the stem. The feeding units and the limbing tools are movable towards and away from each other in a common plane to which …

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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 April 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 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 1, 1987
GrantedApril 16, 1991
Term endedApril 16, 2008
Patent numberCA 1283026 C
Classification (IPC)B27L1/00 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedApril 1, 1987Patent grantedApril 16, 1991Term endedApril 16, 2008

Sources & verification

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