Continuously manufactured colored metallic products and method of manufacturing of such products
CA 2544770 C · Owner: Allied Tube & Conduit Corporation · Inventors: Florek, James; Boyce, William; Hays, James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Metallic tube, pipe and conduit are made in a continuous process that includes a zinc galvanization stage, a first passivation stage a second passivation , stage and a third passivation stage. A colorant is added to the tube pipe or , conduit during the continuous manufacturing process and the colorant imparts , the appearance of a color such as red. The continuous movement of the tube pipe or conduit is not halted during normal operation of the tube pipe or , conduit manufacturing and coloring process.
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 November 8, 2004 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.