Intaglio printing machine for the printing of currency papers
CA 2016372 C · Owner: De La Rue Giori S.A. · Inventors: Giori, Gualtiero
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The intaglio printing machine comprises a plate cylinder (4) with a plurality of engraved printing plates equipped with intaglio cuts representing the elements of a main design and with less deep and finer intaglio cuts representing the elements of a safety background an, impression cylinder (3), a wiping device (10) and a multicolor inking system. This inking system consists of a collector inking cylinder (5) having an elastic surface interacting with the engraved plates mounted on the plate cylinder (4) and having the same diameter as this. The collector inking cylinder (5) is inked by as many selective color inking cylinders (7) as there are colors to be printed, these selective color …
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 May 9, 1990 and granted September 28, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 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.