Apparatus, system and method for treating process material such as waste material
CA 2175686 C · Owner: Strathclyde Technologies, Inc. · Inventors: Anderson, Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for treating process material includes a vessel into which process material can he introduced an arrangement for, introducing steam into the interior of the vessel to heat and impart moisture to process material in the vessel and several fluid transport, conduits extending helically through the vessel for conveying heated fluid through the vessel between opposite ends of the vessel in order to raise the temperature and pressure within the vessel to treat the material while also allowing the moisture content of the process material to be reduced. The fluid transport conduits are also configured to contact the process material and assist in treating and densifying the material. …
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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 October 28, 1994 and granted July 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2016.
- 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.