Systems producing a centre-feed roll with a protruding tapered feeding stem
CA 2794657 A1 · Owner: Georgia-Pacific France · Inventors: Hungler, Joel; Malecot, Yves-Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A core-free roll is comprised of a sheet of dry flexible material, such as an absorbent fibrous material formed by the rolling of the sheet around a winding axis. A center-feed first strip of the roll forms a projection along the axis in relation to at least one part of one of the sides of the roll. The first strip has a tapered end portion formed by a transverse fold which is formed on a winding support which is parallel to the winding axis of the roll.
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 12, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 12, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 2025.
- 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.