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Expired Canadian patentCanada

Hand-held machine

CA 1299996 C · Owner: Akiba, Genji · Inventors: Akiba, Genji; Tanaka, Kohya; Ishida, Shigetoshi

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 hand-held machine such as a cleaver equipped with an engine as the driving source wherein the drive shaft pipe is formed by telescopically extendable pipe members provided with a fixing means, and the rotational force of a driving mechanism is transmitted to the operational means via the drive shaft having a circular section at least one, one-way clutch and the drive shaft on the side of the operational means to thereby minimize the size of the device conveniently for transportation/storage improve the work, efficiency, and secure the safety of the operator.

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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 May 5, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 5, 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.
FiledOctober 28, 1988
GrantedMay 5, 1992
Term endedMay 5, 2009
Patent numberCA 1299996 C
Classification (IPC)B26B7/00

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedOct 28, 1988Patent grantedMay 5, 1992Term endedMay 5, 2009

Sources & verification

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