Filter for separating substances having lipophilic and/or oleophilic and/or apolar properties from different liquids, gases and vapors
CA 1268718 C · Owner: Sorbent Products Co. Inc. · Inventors: Maurer, Gunter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filter for separating substances having lipophilic and/or oleophilic and/or apolar properties, such as fats oils, substituted or unsubstituted hydrocarbons from different, liquids, gases and vapors such as water, (moist) air and, water vapor employing polyolefin fibers and/or filaments which have a diameter of 0.1 to 10 µm, and preferably 0.5 to 2 µm, as filter material. The filter material is present in the form of bands or strands which are of finite or infinite length, and which are formed from webs waddings or other, sheet-like structures made of such fine fibers and/or filaments and which are arranged with respect to each other in such a way that free openings and passages are in …
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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
- Granted May 8, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 2007.
- 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.