Solids fluidization system
CA 2214545 C · Owner: Exxon Research And Engineering Company · Inventors: Wachter, William Augustine
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a system for fluidizing a dense phase bed of solid particles, preferably a dense phase bed of solid catalyst particles. The system includes a dense bed solids housing, a dense bed solids support within the housing, a fluid injection component which sends fluids toward the solids supported within the housing, and a structural component which is capable of decreasing the distance between the dense bed solids support and the fluid injection component as the fluid is sent toward the solids that are supported within the housing.
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 September 19, 1997 and granted June 17, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2019.
- 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.