Paint sludge separator system
CA 2034225 C · Owner: Taikisha, Ltd. · Inventors: Tanaka, Shimpei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sludge separator system having a separator tank for seperating by floating paint sludge content in liquid reserved thereat, a receiver tank for receiving the floated sludge together with a portion of the liquid and a sludge collector tank for receiving the sludge-liquid mixture via an outlet passage from the receiver tank and separating the sludge content from the mixture. The system also has a liquid exhaust passage for withdrawing the liquid from a bottom position of the receiver tank. The outlet passage has an inlet opening positioned upwardly of a region at the receiver tank where the sludge-liquid mixture stays.
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 January 15, 1991 and granted September 30, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2013.
- 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.