One-side galvanizing
CA 1100367 A · Owner: Inland Steel Company · Inventors: Gomersall, David W.; Franks, Lawrence L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of continuously producing a one-side-only zinc coated ferrous metal strip from a strip initially having zinc coated on both wide surfaces comprising-differentially hot-dip coating, with the zinc on one of the wide surfaces being in the form of a thin film applying heat to only the wide surface of the strip having the zinc in the form of a thin film until the film and abrading the surface of the intermetallic layer thus formed by brushing to effect complete removal thereof, leaving the other wide surface of the strip coated with zinc.
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 May 5, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 5, 1998.
- 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.