Postage label having concealed postal indicium
US7980595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2009 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Jun 18, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/913
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A postage payment label is provided which includes a substrate having an image provided thereon and a postage mark. The substrate and the image are able to transmit light of one or more first wavelengths (e.g., infrared or ultraviolet light) while the postage mark is able to absorb or reflect light of the one or more first wavelengths. Moreover, the image that is provided on the substrate is able to absorb and/or reflect light of one or more second wavelengths (e.g., visible light). Accordingly, when the image is illuminated with light of the one or more second wavelengths (e.g., visible light), the image conceals a portion or all of the postage mark. The postage mark (or relevant portion thereof), however, may be viewed when the image is illuminated with light of the one or more first wavelengths and not illuminated with light of the one or more second wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.