Patent Yard Sign in
Expired Canadian patentCanada

Method of multiplicating plant seedlings

CA 1294908 C · Owner: Tanimoto, Shizufumi · Inventors: Tanimoto, Shizufumi; Takahashi, Shigeru

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A method of multiplicating seedlings of a plant wherein tissue culture is applied to tissue pieces or cultured cells of the plants belonging to Papaveraceae Solanaceae except for Torenia , Umblliferae Rosaceae, Liliaceae except for Lilium, Compositae Geraniaceae, Cucurbitaceae and Gramineae by using a medium containing at least one compound selected from the group consisting of calcium ionophore cyclic AMP, and polyamine. Plant body of high quality can be cultured in a great amount at a higher efficiency from the tissue pieces or cultured cells of plants, as compared with the conventional process.

Read the whole patent

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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 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.
FiledDecember 23, 1987
GrantedJanuary 28, 1992
Term endedJanuary 28, 2009
Patent numberCA 1294908 C
Classification (IPC)A01G7/00 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedDec 23, 1987Patent grantedJan 28, 1992Term endedJan 28, 2009

Sources & verification

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