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:
Jun. 10, 1997
Filed:
Jun. 21, 1995
Stephen A Singer, Wheeling, IL (US);
Micro Format, Inc., Wheeling, IL (US);
Abstract
To prevent unauthorized duplication of important security documents, an improvement in security or protected documents is disclosed. The security document includes a substrate having top and bottom surfaces where at least one of the surfaces is adapted to carry printed copy thereon. A colored background is printed on at least a portion of one of the surfaces, such as the surface which is adapted to carry printed copy, using a temperature sensitive ink. The security document also includes copy printed on at least a portion of the one of the surfaces adapted to carry printed copy thereon. With these features of construction, the security or protected document contemplates the copy being printed by utilizing a temperature insensitive ink.