Coal water slurry composition based on low rank carbonaceous solids
CA 1310187 C · Owner: Mathiesen, M. Mihkel · Inventors: Mathiesen, M. Mihkel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a coal water slurry composition based on low rank carbonaceous solid characterized, in that it contains a minor portion of high rank carbonaceous solid, the high rank carbonaceous solid being milled to a finer average size than the lower rank carbonaceous solid.
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 November 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 2009.
- 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.