Activation procedure for a recovery boiler
CA 2418481 C · Owner: Segret, Jacques · Inventors: Labasque, Jacques; Segret, Jacques
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The heat recovery boiler (1) is operated at least temporarily, by feeding its combustion system with air (13) and with a stream (15) of flue gases (4) recycled to a level of at least 45% typically between 50 and 65%, so as to allow the efficiency of the boiler to be increased and to decouple it at least temporarily, from the combustion engine (8) driving a generator (9) the exhaust gases from which are burnt in post-combustion mode in the boiler in co-generation mode.
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 February 17, 2003 and granted April 19, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 17, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 17, 2025.
- 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.