Dry and crush treating method using jet burner and treating apparatus therefor
CA 2253091 C · Owner: Shimasaki, Tatsuaki · Inventors: Shimasaki, Tatsuaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dry and crush treating apparatus using a jet burner includes: a jet burner drying an oil-containing or/and water-containing raw material; a dry treating tank; and a recovering unit recovering a dried fine particles made of the raw material. In the construction, the recovering unit is installed within the dry treating tank.
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 November 6, 1998 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2020.
- 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.