Method for removing oil, petroleum products and/or chemical pollutants from liquid and/or gas and/or surface
CA 2346252 A1 · Owner: Petrik, Viktor Ivanovich · Inventors: Petrik, Viktor Ivanovich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the Held of ecology in particular. to the struggle , against pollution of the environment with oil, petroleum products cyclic and aromatic , hydrocarbons, other chemical pollutants i.e. to purification of a water area, write waters industrial, machinery, polluted soil and ground etc. and also to the field of objects used to satisfy the, vital requirements of humans and to medicine. A method for removing chemical pollutants includes preparing a carbonaceous mixture of an expanded graphite and carbonaceous nanocrystals of a graphitecontaining, feedstock, dispersing it onto the surface and/or into a liquid and/or placing on a surface, and/or passing a liquid or gas …
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 May 4, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 4, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2023.
- 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.