Method and apparatus for increasing the density of particulates on a substrate
CA 2130673 C · Owner: Chitouras, Costa G. · Inventors: Chitouras, Costa G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus is disclosed for significantly increasing the density of particulates on a substrate. The method includes disposing a particulate material such as fibers or abrasive material, onto a surface of the substrate whereby the particles, adhere to the substrate. The substrate is then exposed to conditions sufficient to cause the surface area, on which the particulate material is disposed, to diminish significantly thereby significantly , increasing the density of the particulate material. The apparatus includes a support on which the substrate is disposed; means for disposing the particulate material in the substrate and means for causing the surface on which the …
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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 February 26, 1993 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 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.