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Expired Canadian patentCanada

Device for use in propagating plants

CA 1301457 C · Owner: Williames Hi-Tech International Pty. Ltd. · Inventors: Williames, Geoffrey A.

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

Apparatus for propagation of plant seedlings including a cell chain comprising a series of cells rigidly connected to form a group of aligned cells each group pivotal relation to another group by a link cell to form a continuous chain of cells able to be mechanically handled by transport devices or concertined into a solid block of cells having little or no wastage of space.

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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 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 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.
FiledFebruary 11, 1987
GrantedMay 26, 1992
Term endedMay 26, 2009
Patent numberCA 1301457 C
Classification (IPC)A01G9/10

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedFeb 11, 1987Patent grantedMay 26, 1992Term endedMay 26, 2009

Sources & verification

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