Method and device for packaging a roll formed by a wound web of material
CA 2183184 C · Owner: Voith Sulzer Finishing Gmbh · Inventors: Conrad, Hans-Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and device for packaging a roll formed by a wound web of material. The roll has a first axial end and a second axial end. The method includes the steps of (1) wrapping the roll with a web of packaging material; (2) forming an axial projecting length at each axial end of the packaging material; (3) placing an end cover against each axial end of the roll at a predetermined angle with respect to the axial end of the roll; and (4) folding each axial projecting length in onto the respective axial end of the roll thereby causing each end cover to move into contact with the respective axial end of the roll. The device includes a winding device that has a dispenser for the web of packaging …
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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 13, 1996 and granted November 9, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 13, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2018.
- 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.