Process for the production of documents which cannot be falsified
CA 1161878 A · Owner: Agfa-Gevaert Aktiengesellschaft · Inventors: Rosenkranz, Hans J.; Neuhaus, Karl-Friedrich; Perrey, Hermann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, The process relates to the production of tamperproof documents by laminating an information carrier on one or both sides with foils which have an adhesive layer which is hardened by radical cross-linking. A-G 1689
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
- Granted February 7, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 7, 2001.
- 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.