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.

Date of Patent:
Jan. 07, 2014

Filed:

May. 29, 2007
Applicants:

Rajendra Mehta, Dayton, OH (US);

Steven L. Yeager, Dayton, OH (US);

Stephen D. Webendorfer, Miamisburg, OH (US);

Inventors:

Rajendra Mehta, Dayton, OH (US);

Steven L. Yeager, Dayton, OH (US);

Stephen D. Webendorfer, Miamisburg, OH (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B42D 15/10 (2006.01); B41M 5/04 (2006.01); B41M 3/14 (2006.01); B44F 1/12 (2006.01); G09C 3/10 (2006.01); C09D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A document uses a chemically reactive security ink to facilitate security, making it more difficult to alter a genuine security document. The chemically reactive security ink masks a warning word or message on a security document. The hidden warning word or message is revealed when the document is subjected to chemical washing.


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