Fluorescent hidden indicium

Details Fluorescent hidden indicium Fluorescent hidden indicium

2003-10-24

2008-09-09

St.Cyr, Daniel (Department: 2876)

Registers

Records

Fluorescent, phosphorescent, radiation emitting

C235S494000

Reexamination Certificate

active

07422158

ABSTRACT:
A printed indicium including a first section and a second section. The first section includes a first ink having a first color under normal daylight. The second section includes a second different ink. The second ink includes a fluorescent ink which has a second color under normal daylight which is substantially the same as the first color. The fluorescent ink has a fluorescence when subjected to fluorescent-exciting radiation. The second section is imbedded with the first section such that the first and second sections are substantially visually indiscernible from each other in normal daylight.

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patent: 02/50802 (2002-06-01), None

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