Multi-nip high-speed paper converting
CA 2020690 C · Owner: Georgia-Pacific Consumer Products Lp · Inventors: Schulz, Galyn A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A converted product which is particularly high both in bulk and in perceived softness is produced by pre-embossing the plies of a web individually joining, the plies and calendering and again embossing. In another example, the pre-emboss step is carried out at a first station at which some calendering is also effected further embossing being effected at a subsequent station. In yet another example embossing is first carried out on, the web of plies and subsequently further embossing and calendering are concurrently effected.
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 July 9, 1990 and granted February 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 2012.
- 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.