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. 20, 2018

Filed:

Jul. 26, 2013
Applicant:

Crane Payment Innovations, Inc., Malvern, PA (US);

Inventors:

Klaus Meyer-Steffens, Deinste, DE;

Hans-Ulrich Cohrs, Horneburg, DE;

Wilfried Meyer, Buxtehude, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A44C 21/00 (2006.01); G07D 5/00 (2006.01); G07D 5/02 (2006.01);
U.S. Cl.
CPC ...
A44C 21/00 (2013.01); G07D 5/00 (2013.01); G07D 5/02 (2013.01); Y10T 428/21 (2015.01);
Abstract

A coin comprises a core made of a first metal, an outer ring surrounding the core concentrically and made of a further metal, and a central ring between the core and outer ring fixedly connected thereto. The central ring consists of an electrically insulating material. Further, the central ring is transparent to electromagnetic waves of a first wavelength range and is less transparent or not transparent to a second wavelength range. Methods for testing the coin are also described.


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