Tamper evident closure and container
US4934557A · kind A · utility
49Cited by
11References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1988 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Dec 5, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2543/00796
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tamper evident food package comprising a container and a removable closure. A plurality of locking members are provided on the closure and engage a downturned lip of the container to prevent removal of the closure while in place. The locking members form part of a detachable tear strip which may be detached to permit removal of the closure. Detachment of the tear strip provides visual indication of unauthorized opening of the food package.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.