Method and apparatus for rinsing metal strip
CA 2076554 C · Owner: Mattiussi, Albert S. · Inventors: Mattiussi, Albert S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for rinsing metal strip has a rinse tank with an inlet end, an outlet end, a bottom and sides. The bottom has an upper surface which slopes upwardly toward the inlet and the outlet ends to define a respective weir at each of the inlet and outlet ends. The bottom further has rinse fluid ports for discharging rinse fluid into the upper surface. The apparatus has a rinse fluid supply means for supplying rinse fluid to the rinse fluid ports. The apparatus further has control over the weirs to completely immerse metal strip in rinse fluid as the metal strip is passed through the rinse tank and across the weirs. A method of rinsing metal strip uses a rinse tank as generally described …
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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 21, 1992 and granted September 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 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.