Mandrel assembly for manufacturing tubular products
CA 2582288 C · Owner: Talana Investments Limited · Inventors: Donnelly, William James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mandrel assembly for manufacturing a tubular product includes a first plate (206), and a cantilever drive roller (202) extending from the first plate. At least one cantilever idler roller (204) also extends from the first plate and , means (218) is provided to rotate the drive roller whereby in use, a strip , may be engaged and advanced by the driver roller to the at least one idler roller and thereby wound about the rollers to form a tubular product.
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 June 27, 2005 and granted October 30, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 27, 2025.
- 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.