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Expired Canadian patentCanada

Round log material and method of producing the same

CA 1092543 A · Owner: Toyo Pulp Co. Ltd. · Inventors: Hanaya, Morimasa

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

A method of bulk loading and transporting timber in the industrial processing thereof in industries including the wood pulp, hard board, particle board and wood wool cement board industries, comprises transversely cutting felled timber logs into log portions each having a length from two thirds to two times its diameter by feeding each log through a multiple saw having a holding system in a timber land; mechanically loading the cut log portions into a space in a transport vehicle in a random manner such that the log portions are disposed in the space without being stacked parallel to one another and with the space occupying ratio of timber to transport space being at least fifty per cent …

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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 December 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 8, 1974
GrantedDecember 30, 1980
Term endedDecember 30, 1997
Patent numberCA 1092543 A
Classification (IPC)B65G67/00 +2 more

Timeline

Timeline From CIPO dates

19751978198119841987199019931996Application filedJuly 8, 1974Patent grantedDec 30, 1980Term endedDec 30, 1997

Sources & verification

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