Refuse reclamation process and apparatus
CA 2391237 A1 · Owner: Lee, Andrew O. · Inventors: Lee, Andrew O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Urban waste is compressed into briquettes that can subsequently be gasified to produce fuel gas, which can subsequently be used to produce electricity and steam. Combustible refuse is fed into a briquetting machine. High compression is used in forming the briquettes to drive out much of the attendant water and produce a briquette that is resistant to decomposition. These briquettes can be used immediately or can be stored for relatively long periods of time before use. When the briquettes are gasified the resulting fuel gases are of , sufficiently high quality that they can be ignited and used to drive a jet turbine for producing electricity and subsequently to create steam. 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 November 10, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 10, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.