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:
Feb. 29, 2000

Filed:

Aug. 27, 1998
Applicant:
Inventors:

Rajendra Mehta, Dayton, OH (US);

Richard Lynn Shields, Centerville, OH (US);

Harry Allen Seifert, Kettering, OH (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D / ; C01G / ; C01G / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
523160 ; 524398 ; 524431 ; 252 6256 ; 106 3132 ; 106 3192 ; 428693 ; 427128 ;
Abstract

The present invention is directed to the deliberate cancellation of MICR-readable documents by applying a penetrating ink through the MICR line of the document wherein the ink contains magnetic particles which disrupt the reading of the MICR line by the MICR reader. The magnetic particles in the ink do not penetrate along with the other ink components, but remain on or near the surface of the document. These extraneous magnetic particles interfere with MICR readers by preventing accurate reading of the encoded MICR characters and cause the MICR reader to reject such a document from normal processing automatically.


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