Linerless pressure sensitive coil of stamps having primer layer
US6797350B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2001 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Feb 6, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2848
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A coil of stamps is formed from a plurality of self-adhesive stamps detachably connected to each other end-to-end to form a continuous strip. Because the stamps include a primer layer, it is practicable to wind the strip about itself in spiral-like fashion. The strip also includes a portion adjacent to the inner end of the strip having a piece of liner material disposed thereon, and a portion having no liner material thereon, whereby the portion having no liner material thereon allows the strip to be wound directly onto itself. Preferably, the strip of stamps also includes a portion adjacent to the outer end of the strip having a piece of liner material disposed thereon in order to facilitate removal of the first stamp or group of stamps from the strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.