Apparatus for producing stabilizing mixture
CA 2019975 C · Owner: Toyo Denki Industrial Co. Ltd. · Inventors: Araoka, Toshinobu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for producing stabilizing mixture is diclosed. The apparatus is characterized in that an underwater pwmp provided with a suction port and at least one discharge port is disposed in a stirring water tank, that suction port and the discharge port are opened into the stirring water tank, and that the other end of a bentonite intake pipe having one end connected to a supply source for bentonite or the like is connected to the discharge port whereby the bentonite or the like can be sucked into the discharge port due to the negative pressure generated in the discharge port when the underwater pwmp is driven and vigorously mixed with water to produce a stabilizing mixture of uniform …
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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
- Filed June 27, 1990 and granted July 23, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 27, 2012.
- 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.