Condensing heat exchanger scrubber system
CA 2137014 C · Owner: Williams, Paul J. · Inventors: Williams, Paul J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A scrubber and heat recovery system for flue gas comprises a housing having a cooling section and a condensing section. An inlet is located near the cooling section and an outlet is located near the condensing section for the entry and exit of the flue gas. A cooling heat exchanger is located in the cooling section and a condensing heat exchanger is located in the condensing section for interactively contacting the flue gas. A perforated tray is located in the condensing section at the condensing heat exchanger for improving distribution of the gas and providing additional contact surface.
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 November 30, 1994 and granted February 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 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.