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Expired Canadian patentCanada

Plant cultivating apparatus

CA 1285389 C · Owner: Ikeda, Akira · Inventors: Yabuuchi, Kazuyoshi; Kawaai, Yoshitaka; Ezaki, Kenji

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

In a plant cultivating apparatus for cultivating plants by using an artificial light source partition walls, having a high light reflectance are arranged in a cultivation area to divide the cultivation area into small spaces and in each small space a light-reflecting plate is arranged and, the distance between the artificial light source and the plants is narrowed to irradiate the plants with a light having a low illuminance. In accordance with a preferred embodiment there, is provided a plant cultivating apparatus comprising sets of pallets which have plants placed therein and are arranged in rows in a growing chamber where environmental conditions are artificially controlled and which are …

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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 July 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2008.
  • 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 30, 1986
GrantedJuly 2, 1991
Term endedJuly 2, 2008
Patent numberCA 1285389 C
Classification (IPC)A01H3/02 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedJan 30, 1986Patent grantedJuly 2, 1991Term endedJuly 2, 2008

Sources & verification

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