The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2014
Filed:
Jan. 25, 2011
John Cridland, Widnes Cheshire, GB;
Anthony Jarvis, Widnes Cheshire, GB;
Martin Walker, Widnes Cheshire, GB;
Chris Wyres, Widnes Cheshire, GB;
John Cridland, Widnes Cheshire, GB;
Anthony Jarvis, Widnes Cheshire, GB;
Martin Walker, Widnes Cheshire, GB;
Chris Wyres, Widnes Cheshire, GB;
DataLase Limited, , GB;
Abstract
A substrate marking apparatus for use in combination with a substrate comprising a multi-color change diacetylene compound is disclosed. The substrate marking apparatus comprises: at least two radiation sources operable to emit radiation of different wavelengths, optical transformation elements and a control system. The control system takes digital file information and converts this to a set of emission instructions for the radiation sources. The radiation sources are then applied to the substrate in sequence and intensity determined by the control system such that the substrate is activated to change from a colorless state to any one of a range of multiple permanent colors.