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. 15, 1999
Filed:
Apr. 27, 1998
David M Good, Peachtree, GA (US);
Mark A Shadle, Peachtree, GA (US);
Gerrit L Verschuur, Lakeland, TN (US);
Chauncey T Mitchell, Jr, Lakeland, TN (US);
Robert Parker, Palm Desert, CA (US);
Wisconsin Label Corporation, Algoma, WI (US);
Abstract
An electrochemical display cell has a layered construction including two electrode layers separated by a dielectric layer. Concentric openings are formed in the dielectric layer and one of the electrode layers exposing a designated portion of the other electrode layer. An electrolyte layer overlaps the one electrode layer and the designated portion of the other electrode layer. When activated, current flow cascades through the openings in the one electrode layer and the dielectric layer to the designated portion of the other electrode layer supporting an electrochemical reaction that erodes the designated portion revealing underlying visual information.