Method of cultivating mushrooms
CA 2070715 A1 · Owner: Motai, Hiroshi · Inventors: Osaki, Katsumichi; Okada, Kimiharu; Suzuki, Masaru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A culture solution containing a previously cultivated mushroom fungus is diluted with a liquid culture medium at dilution rate of 0.05/h or less and agitated, with an agitating power of 0,4 w/L or higher in a culture tank for continuous cultivation of the mushroom fungus at 25°C with a pH of 5. The culture solution is continuously drawn out of the culture tank, and inoculated in a mushroom bed or sawdust, etc. for mushroom cultivation.
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 June 8, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2014.
- 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.