Graphitization furnace
CA 1058832 A · Owner: Sigri Elektrographit Gesellschaft Mit Beschrankter Haftung · Inventors: Vohler, Otto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Furnace for the graphitization of carbon bodies in which carbon bodies arranged in a continuous row are clamped between two electrodes and heated up to the graphitization temperature by electric resistance heating. me carbon bodies are surrounded by movable shell-shaped walls and the space between the bodies and the walls contains no granular isolation materials. The furnace permits the graphitization of carbon bodies with smaller energy consumption and a shorter time.
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
- Granted July 24, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 24, 1996.
- 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.