Novel application for specific resolution of colloidal emulsions from desalter mudwash water
CA 2289306 A1 · Owner: Morrison, William · Inventors: Morrison, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It has been discovered that a composition of aluminum chlorohydrate and a second component selected from the group consisting of quaternary amines, inorganic agents, polyamines, copolymers polyacrylamides, and, mixtures thereof is useful for resolving emulsions of oil and water particularly mudwash water injected into the bottom of a desalter.
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 10, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 10, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 2021.
- 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.