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:
Nov. 24, 1998
Filed:
Jun. 27, 1997
Lawrence Appalucci, Villanova, PA (US);
John H Bowers, Clarksburg, NJ (US);
Gary T Mazoki, Sewell, NJ (US);
Thomas J McKeown, Pennsauken, NJ (US);
Anthony F Piccoli, Audubon, NJ (US);
Mark J Rankin, Media, PA (US);
Stanley Tocker, Wilmington, DE (US);
Checkpoint Systems, Inc., Thorofare, NJ (US);
Abstract
A resonant tag circuit useful as an electronic security device includes a layered planar structure having a dielectric substrate, a resonant circuit carried on both sides of the dielectric substrate and a semiconductive material having an ionizable salt dissolved therein. The semiconductor material provides a sermiconductive bridge across an activation or deactivation point in the circuit and connects the conductive circuit on both sides of the activation or deactivation point. The resonant tag circuit of this invention is stabilized against premature operation of the activation or deactivation point from electrostatic discharge.