Distillation column for integrated ethanol production and animal feeding system
CA 2133398 A1 · Owner: Craig, Donald M. · Inventors: Wallace, John Blair; Craig, Donald M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An novel distillation column for an integrated energy efficient ethanol production and animal feeding system comprising: (a) hollow enclosed chamber; (b) liquid pumping means for introducing an ethanol containing liquid into the chamber and volatilizing the liquid into fractions including an ethanol vapour fraction; (c) vapour withdrawal means for withdrawing the ethanol vapour fraction from the chamber (a); (d) a plurality of temperature means distributed throughout the chamber means for measuring and controlling temperature in the chamber (a); (e) first means in the interior of the chamber (a) for heating or cooling the interior of the chamber according to the temperature means (d); (f) a …
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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 September 30, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 30, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 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.