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Expired Canadian patentCanada

Tree felling apparatus

CA 1252025 A · Owner: Entreprises Forestieres L.R.M. Inc. (Les) · Inventors: Mailloux, Leandre

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 feller head includes a base plate having a tree receiving notch, and an upstanding frame and a support plate parallel to and pivoting on the base plate such that the support plate can travel in an arc across the notch in the base plate. A chain saw is provided with a run along the leading edge of the support plate such that as the support plate is advanced across the notch the chain saw will cut through a tree grasped within the notch of the felling head. After the tree has been severed it is supported on the support, plate and held there by accumulator means.

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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 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 4, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 31, 1986
GrantedApril 4, 1989
Term endedApril 4, 2006
Patent numberCA 1252025 A
Classification (IPC)A01G23/08

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedJan 31, 1986Patent grantedApril 4, 1989Term endedApril 4, 2006

Sources & verification

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