Method for elimination or furnace roll pickup marks on silicon containing sheet steel
CA 1049904 A · Owner: Uss Engineers And Consultants · Inventors: Henricks, Arthur R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for continuous annealing silicon containing sheet steel whereby furnace roll pickup marks are eliminated said process involving the use of furnace rolls having a silica peripheral surface and maintaining an annealing atmosphere containing hydrogen to water at a ratio of at least 5:1.
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 March 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 6, 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.