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Expired Canadian patentCanada

Radio control aerial automatic carrying system

CA 1262341 C · Owner: Hirano, Kozo · Inventors: Hirano, Kozo

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

There is a radio control aerial automatic carrying system for carrying an object such as cut woods by a carrying apparatus suspended to a cableway. This system comprises: an aerial main cableway suspended in a desired felling region; drive wheels suspended to the aerial main cableway; outer casings coupled to the drive wheels; a power source disposed in the outer casings; hoisting apparatuses which are driven by the power source and hoist the cables to hang up and down the object to be carried; a receiver, provided for the outer casings for receiving the radio waves transmitted from a transmitter and for generating control commands to drive the power source and hoisting apparatuses in …

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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 October 17, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 17, 2006.
  • 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 14, 1987
GrantedOctober 17, 1989
Term endedOctober 17, 2006
Patent numberCA 1262341 C
Classification (IPC)B66C13/44

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedJan 14, 1987Patent grantedOct 17, 1989Term endedOct 17, 2006

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