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Expired Canadian patentCanada

Sawmill carriage log turner

CA 2228356 C · Owner: Yoder, Daniel · Inventors: Yoder, Daniel

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

This invention attaches to a sawmill carriage enabling an, operator to turn a log carried by the sawmill carriage without having to return the sawmill carriage to a fixed location. The invention includes a log turning hook with positioning guide bar that slides vertically with respect to and pivots with, a, cylinder. As the turning hook with positioning guide bar is lifting the log, the weight of the log is forcing the hook with positioning guide bar to pivot, which rotates the log ninety degrees into position for the next saw cut.

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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 January 30, 1998 and granted October 10, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 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.
FiledJanuary 30, 1998
GrantedOctober 10, 2000
Term endedJanuary 30, 2018
Patent numberCA 2228356 C
Classification (IPC)B27B29/08 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJan 30, 1998Patent grantedOct 10, 2000Term endedJan 30, 2018

Sources & verification

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