Heat transfer plate and method of producing heat transfer plates
CA 2290230 A1 · Owner: Paul, Eberhard · Inventors: Paul, Eberhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of producing heat transfer plates wherein the plates are shaped such , that they comprise cavities for the passage of air. The plates are produced of heated synthetic, material, in particular foils of synthetic materials in a deep drawing method , by using, compressed air. The cavities of the plates form flow channels in which a lateral, displacement exists at least in parts of their axial extension. When the plates are, disposed on top of one another said displacement abuts an edge of a flow channel of the, plate arranged above or below.
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 19, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 19, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2021.
- 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.