Device for surface treatment of strips with liquids
CA 2199768 A1 · Owner: Hiden, Gunther · Inventors: Hiden, Gunther; Gravert, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention refers to a device for surface treatment of strip using liquids particularly for pickling rolled metal strip in a trough-shaped tank, particularly one with a cover to close it. It is characterized by a panel being mounted above the strip and submerged in the liquid particularly in, the pickle, and which is aligned approximately parallel to the strip and divides the treatment bath into a treatment area underneath the panel and a return flow sector for the liquid, particularly the pickle above the panel.
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 March 12, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2019.
- 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.