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:
Jan. 28, 2014
Filed:
Aug. 26, 2009
Applicants:
Martin Walker, Cheshire, GB;
Anthony Jarvis, Cheshire, GB;
Christopher Wyres, Cheshire, GB;
William Green, Cheshire, GB;
Inventors:
Martin Walker, Cheshire, GB;
Anthony Jarvis, Cheshire, GB;
Christopher Wyres, Cheshire, GB;
William Green, Cheshire, GB;
Assignee:
Datalase Ltd, Cheshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M 1/26 (2006.01); B41M 1/28 (2006.01); B41M 1/30 (2006.01); B41M 1/34 (2006.01); G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method of marking a substrate comprising treating the substrate with a boron compound and a charrable agent, and, irradiating the areas of the substrate to be marked such that those areas change colour. Marked substrates obtainable by this method are also provided.