EP1525994A3

Method for halftone printing with multi-signal transmission ink

Abstract

A method for printing indicium on an article including steps of providing a supply of ink comprising a multi-signal transmission ink which is adapted to provide an optically visual signal when viewed in normal daylight and adapted to provide a different signal which is adapted to be machine readable; and printing at least a portion of the indicium on the article by halftone printing the multi-signal transmission ink. The portion is adapted to be visually observable in normal daylight. The portion is adapted to be read as a non-halftoned signal by a machine even though the portion is halftone printed.

Term

Term ended

Projected expiry passed 22 October 2024, 1.9 years ago.

  1. Priority
  2. Filed
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  4. Projected expiry
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Every citation, both ways

Citations
DocumentRelationOfficeCategoryCited duringRelevant claims
WO03011606A1CitesWorld Intellectual Property Organization (WIPO)XSearch report1-26
EP1038690A1CitesEuropean Patent Office (EPO)ASearch report1,12,17,20,24
US2002096064A1CitesUnited States of AmericaASearch report1,12,17,20,24