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Expired Canadian patentCanada

Firewood processor

CA 1304274 C · Owner: United States Wood Inc. · Inventors: Lusk, Elmer C.; Nunnery, Ermal R.; Nunnery, E. Ray

CIPO record

Overview

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

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Abstract From the Canadian patent

A wood processor is disclosed for cutting a log into a series of shorter lengths and subsequently splitting the shorter lengths into individual pieces of firewood or the like. The processor includes a carriage for receiving the log. Clamps engage the log from both sides to secure it in the carriage which advances the log into contact with a plurality of parallel rotating saws. After he carriage is retracted a pusher rod moves the cut log pieces along an axis onto a plurality of cradle members one cradle, supporting each log section. The cradle members are tilted to dump the log sections alternately onto opposite sides of the axis of log movement. The logs dumped from the cradles are fed to …

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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 June 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 1, 1988
GrantedJune 30, 1992
Term endedJune 30, 2009
Patent numberCA 1304274 C
Classification (IPC)B27L7/00 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedNov 1, 1988Patent grantedJune 30, 1992Term endedJune 30, 2009

Sources & verification

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