Embossing system including sleeved rolls
CA 2218422 C · Owner: Fort James Corporation · Inventors: Gracyalny, Dale T.; Schulz, Galyn A.; Makoui, Kambiz B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for embossing a substantially continuous web of material including a supply for supplying at least one substantially continuous web of material, feeding the substantially continuous web of material an embossing, device for embossing a predetermined pattern in the web material and a take-up device for taking-up the embossed web material; wherein at least one roll of the system includes an elongated core formed of a substantially rigid material and an elongated sleeve formed of a material less rigid than the elongated core with the elongated sleeve being releasably secured to the core such that the elongated sleeve is axially and circumferentially fixed with respect to the core when …
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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 October 16, 1997 and granted January 21, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2019.
- 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.