A method for manufacturing a fabric-like laminate and a product manufactured according to said method
CA 2123986 C · Owner: Duni Ab · Inventors: Bjork, Bengt
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for manufacturing a fabric-like laminate of creped tissue paper, which preferably is wetstrength-treated and a product manufactured according to said method e.g. a , table-cloth. During a first step an adhesive is applied to a first tissue paper web (9) in patterns to form a first web (A) said , web in a second step being laminated to another tissue paper web (B) by means of a water-based adhesive compound containing a dispersion adhesive mixed with a large amount of filler, said compound making that the adhesive only penetrates a limited depth into the surface layer of the webs (A, B) directed towards each other at the same time as it gives the material …
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 December 18, 1992 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2014.
- 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.