Tamper resistant means for on-package peelable premium
US4306367A · kind A · utility
71Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1980 |
| Grant date | Dec 22, 1981 |
| Priority date | — |
| Expiry date | Apr 10, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In cartons made from laminated packaging material wherein a peelably removable section of the outer ply is defined by a weakened tear line and said section is unadhered to the substrate, resistance to unauthorized tampering or removal of such section from said container is achieved by utilizing a water soluble adhesive as a laminant and including a border area of said section at the starting point of the tear outline within the area of adherence by said laminant to thus require application of moisture to said border area to dissolve said adhesive at said area before the tearing away of such section can be accomplished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.