Staged heat and mass transfer applications
CA 2390067 A1 · Owner: Tung, Peter · Inventors: Tung, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus including at least one heat transfer zone (400) and at least one mass transfer zone (300). Two applications following the concept of staged heat and mass transfers are given. The first one relates to wastewater stripper overhead. The second one relates to recovering both heat and condensate from a steam boiler deaerator steam vent (35) by retrofitting the vent with an economizer.
Read the whole patent
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 March 14, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2023.
- 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.