Method for multiplying plant belonging to the genus asparagus
CA 2004686 A1 · Owner: Takahashi, Shigeru · Inventors: Moriwaki, Rie; Takahashi, Shigeru; Hirata, Yukimasa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for multiplying a plant belonging to the genus Asparagus in large quantities by the tissue culture of a crown, a tuber-like tissue or a stock and a method of the tissue culture using a liquid medium having a dissolved oxygen concentration of 9ppm or more to be used for the multiplication of the plant belonging to the genus Asparagus.
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
- Filed December 6, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 6, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.