Solid-liquid separator
CA 1331569 C · Owner: Itoh, Takashi · Inventors: Okubo, Yasuhiro; Takeishi, Kazuo; Itoh, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solid-liquid separator for subjecting waste water to preliminary sedimentation in a sedimentation zone to separate solid matter from the waste water and then passing the waste water upward through a filter medium layer to remove SS (suspended solids) from the waste water.
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 August 23, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 23, 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.