Positive evacuation of fccu reactor dilute phase volume
CA 2102175 C · Owner: Exxon Research And Engineering Company · Inventors: Steffens, Todd R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In its simplest sense, the present invention provides a uniquely shaped conduit between the primary and secondary cyclones or in the alternative, between the riser and the primary cyclone which, creates an increase in the auction of the dilute phase vapor beyond that normally available in the reactor vessel thereby reducing the, dilute phase residence time in the vessel reducing post-riser thermal, cracking, hydrogen transfer reactions and coking tendency of mixture, in dilute phase.
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 1, 1993 and granted August 13, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 1, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 2015.
- 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.