Container having a use indicator
US9815593B2 · kind B2 · utility
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20References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2016 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Jun 7, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2401/55
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A package includes a container, a flowable product dispensably disposed within the container, a closure carried by the container, and an indicator within the container and adapted, upon contact with air, irreversibly to change a characteristic of the indicator that is visible from outside of the container to indicate to a user that the package has been used, wherein the closure includes a closure member carrying the indicator and having a wedge opening, and a wedge member carried in the wedge opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.