Steam generator
CA 2514871 C · Owner: Siemens Aktiengesellschaft · Inventors: Kral, Rudolf; Franke, Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a steam generator (1) wherein a continuous evaporating heating surface (8) is , disposed in a heating gas duct (6) through which a heating gas flows in an approximately horizontal manner , (x). Said continuous evaporating heating surface (8) comprises a plurality of steam-generating pipes (12) , which are connected in a parallel manner enabling flowthrough of a flow medium (W), and is configured in , such a manner that a steam-generating pipe (12) which is heated more than another stream-generating pipe , (12) of the same continuous evaporating heating surface (8) has a higher throughput of the flow medium , (W) compared to the other steam-generating pipe …
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 December 8, 2003 and granted May 1, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 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.