Flush toilet
CA 2009568 C · Owner: Suzuki, Kaneyuki · Inventors: Suzuki, Kaneyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flush toilet of the present invention has a toilet stool and an incinerating pot, they are connected to each other by a vertical drain pipe. A shutter is provided which opens the drain pipe during discharge of waste material and closes after completion of the discharge. The shutter is positioned approximately midway of the drain pipe. Raw sewage can be delivered to the incinerating pot, and flush water can be introduced to another location. By introducing flush water to another location, only raw sewage or other waste material can be efficiently incinerated. The flush water used can be reused as flush water after filtration with a filtering apparatus.
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 February 8, 1990 and granted September 7, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 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.