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Expired Canadian patentCanada

Dancing-musical instrument

CA 1268063 C · Owner: Liu, Zhongdu · Inventors: Liu, Zhongdu

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

Dancing-Musical Instrument is a new type of musical instrument and performance apparatus to be used with the special performing art "Instrument dance", "instrument exercise" "instrument boxing" etc. It comprises a floor keyboard on, which the performer can either do the dancing or produce, switching signals with the performer's feet hand or hand hammer, in accordance with the intention of the performer; a similar wall keyboard; a multi-color system and an electronic organ circuit. The performer can play on the floor keyboard while at the same time adjusting with ease the tone timbre, volume and, color, to achieve the multiple artistic effect of producing the shape, sound, light and color by …

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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 April 24, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 24, 2007.
  • 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 23, 1987
GrantedApril 24, 1990
Term endedApril 24, 2007
Patent numberCA 1268063 C
Classification (IPC)G10H1/34 +1 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedJuly 23, 1987Patent grantedApril 24, 1990Term endedApril 24, 2007

Sources & verification

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