Method for obtaining security paper and security paper obtained by such method
CA 2078002 A1 · Owner: Teodoro Vidal, Juan · Inventors: Teodoro Vidal, Juan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method comprises the incorporation to the security paper itself of a series of indicia, which may be letters anagrams, etc. obtained from a water resistant ink with which the corresponding printing is achieved on a water soluble medium so, that after said printing, the medium is eliminated and the indicia remain in suspension and may be applied to the paper in the same way as are incorporated to such paper the conventional security planchettes or fibrilles. Said paper web also incorporates Fluorescent For phosphorescent pigments for identification of the indicia with ultraviolet light or by transparency, and optionally also magnetic materials or simply metal materials for detecion of …
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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 January 10, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 10, 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.