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Expired Canadian patentCanada

Method for upgrading the operation of a wood strander

CA 2249968 C · Owner: Kokko, Pekka · Inventors: Kokko, Pekka

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 invention relates to a method for upgrading the operation of a wood strander especially a roundwood strander, said apparatus comprising a rotatable housing element (1) provided with stranding tools (2) which are spaced apart from each other and arranged in such a way that the tools (2) have cutting edges (3) thereof positioned on a substantially common surface (4) which is distanced by a radius (r) from an axis of rotation (14) of the housing element (1) a feeding means for delivering wood or timber (6) to the strander in a direction substantially parallel to said axis of rotation (14) and means (5) for achieving a relative feeding action between the timber (6) and the stranding tools …

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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

  • Filed October 9, 1998 and granted September 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 9, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2020.
  • 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 9, 1998
GrantedSeptember 12, 2000
Term endedOctober 9, 2018
Patent numberCA 2249968 C
Classification (IPC)B27L11/00 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedOct 9, 1998Patent grantedSep 12, 2000Term endedOct 9, 2018

Sources & verification

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