Package showing elapsed time since opening
US7643378B2 · kind B2 · utility
46Cited by
21References
7Claims
0Family size
Inventor
Key dates
| Filing date | Jul 23, 2007 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Jan 19, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1334
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An at least partially flexible sealed package having an opening assembly, said opening assembly further comprising a sliding component and a lifetime indicator; the movement of said sliding component serving to open a seal of said package; the arrangement being such that the movement of said sliding component activates said lifetime indicator due to the relative motion between said sliding component and at least part of said lifetime indicator; such that said lifetime indicator can thereby providing a visual indication of the expiry status of the product within said package from the time of opening onwards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.