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Expired Canadian patentCanada

Hopper for continuously and automatically drawing out tires through a water tank

CA 1307229 C · Owner: Michimae, Kiyoharu · Inventors: Onogi, Shozo; Akimoto, Hiroshi; Michimae, Kiyoharu

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 hopper for continuously drawing out tires through a water tank. One or more lines of declining roller conveyors are provided under a port for charging the tires. A water tank is disposed under the lower end of the roller conveyors for receiving the tires sliding down the roller conveyors and arranges them in a definite direction in the water. A means is provided for drawing up the tires from the water tank.

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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 September 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 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.
FiledSeptember 2, 1986
GrantedSeptember 8, 1992
Term endedSeptember 8, 2009
Patent numberCA 1307229 C
Classification (IPC)B65G65/40 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedSep 2, 1986Patent grantedSep 8, 1992Term endedSep 8, 2009

Sources & verification

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