Water-resistant recording material for inkjet printing
CA 2198867 C · Owner: Sihl Gmbh · Inventors: Niemoller, Axel; Gotzen, Klaus; Gold, Manuel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Water-resistant recording material for the inkjet process using water-based inks, having a substrate paper which, in addition to cellulosic fibres contains 1-40 % fibres and on one side or both sides of which a waterresistant recording layer is arranged. After storage for 24 hours at 23 ·C in water, the recording material has over 80 % of the tear strength of the dry paper, measured according to DIN 53128. Even after the storage in water the , colour difference .DELTA.E, measured according to DIN 6174 of coloured areas , of the primary colours applied in the inkjet process is less than 10 based on , the initial colour values.
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 8, 1995 and granted September 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2017.
- 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.