Tamper resistant vehicular validation tab having differential adhesive properties
US5948555A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 1996 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | May 21, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24876
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A vehicular validation tab has an outer film provided with an outer surface and an inner surface. Adhesive enhancing tie coat means are secured to the inner surface in some but not all portions thereof. A layer of adhesive is secured to an inner surface of the outer film with identifying information interposed therebetween. A stripable film may be secured over the adhesive which may be pressure-sensitive adhesive and a write-resistant material may be secured to the outer surface of the outer film. Portions of the inner surface of the outer film not having the tie coat are provided with a release material to provide for differential bonding of the identifying information. The tie coat and release coat portions facilitate destruction of portions of the identifying material when the outer film is separated from the adhesive. The bond between the outer film tie coat portions and the adhesive is stronger than the bond between the adhesive and the license plate or other substrate, and the bond between the release coat portions and the adhesive is less than the bond between the adhesive and the license plate or other substrate. As a result, an effort to remove the vehicular validation tab…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.