Security device having multiple security detection features

US6930606B2 · kind B2 · utility

Assignees

• Crane & Co., Inc. · US
• Technical Graphics Security Products, LLC · US

Inventors

• Timothy T. Crane · Windsor, US
• Paul F. Cote · Barnstead, US
• Stephen B. Curdo · Hollis, US
• Gerald J. Gartner · Hollis, US
• Gary R. Wolpert · Mason, US

Key dates

• Filing date: Jun 15, 2001
• Grant date: Aug 16, 2005
• Expiry date: Mar 21, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31678
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A security device, such as a security thread, uses multiple security detection features provided by combining metal and metal/magnetic security features on a carrier substrate. The security detection features basically comprise an optionally repeating pattern of discrete metal/magnetic indicia and discrete metal or metal-dot formed indicia. The security detection features may also include at least one metal strip extending along the length of the carrier substrate and/or a plurality of metal dots located on metal-free portions of at least one surface of the substrate.