A process for the separation of tars and heavy oils from oil bearing soils and for the purging of high molecular weight compounds from surfaces
CA 2276912 A1 · Owner: Deinking/Solvent Extraction Technologies Ltd · Inventors: Di Tullio, Venanzio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A Process for the emulsification and separation of high viscosity aliphatic and, aromatic hydrocarbons from oil bearing soils is described. The Process can also, be used as an aid in the separation and recovery of bituminous materials from both Oil l Tar Sands that bear connated and non-connated water. The Process can, be further used in the removal, from hard surfaces of natural and synthetic , waxes, such as polishing and anti - stick silicones. The application of such an invention, is shown to have value in the processes of 1) in situ and ex situ Oil/Tar Sand bitumen recovery, 2) bitumen viscosity reduction for transport 3) the , unclogging, of paraffin (and/ or kerogen) blocked …
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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 July 13, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 13, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.