Heating device for heating flowing media
CA 2075689 A1 · Owner: Karner, Robert · Inventors: Karner, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heating device for heating flowing media includes a heat exchanger to be heated by PTC resistors. The heat exchanger is formed of thermally conductive metal having a slit-like pocket formed therein defining a given shape and defining pocket surfaces facing one another. A cuboid substrate body has a shape adapted to the given shape and an introduction side to be introduced into the pocket. The substrate body has opposed surfaces with recesses formed therein for receiving the PTC resistors and an internal conduit formed therein for receiving a contact spring. At least the surfaces of the substrate body having the recesses and the pocket surfaces facing the surfaces of the substrate body are …
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 August 10, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 2014.
- 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.