Package integrity indicating closure
US8408792B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2007 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Feb 14, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2577/2091
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A resealable closure for a container in which package integrity is indicated by a structure which breaks and/or produces an audible sound when the resealable closure is opened for a first time. The package integrity feature, in one form includes at least one strip initially affixed to two portions which comprise the resealable closure so that upon opening the resealable closure for a first time, at least one of the strips breaks, thereby producing the audible sound. The strips may include a weakened portion such as a narrowing. Integrity of the package is indicated by an intact strip viewable upon opening the resealable closure and conversely, a broken or non-intact strip would indicate that the resealable closure has been previously opened. Package integrity may also be shown by a movable second panel or movable die cut tab portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.