Flat top container and blank for constructing same
US4784272A · kind A · utility
5Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1987 |
| Grant date | Nov 15, 1988 |
| Priority date | — |
| Expiry date | Dec 18, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/5405
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A flat top, thermoplastic coated, paperboard container having weakened lines formed thereon such that the top may be opened by breaking through a weakened line at the front and progressively breaking the weakened lines along the sides upon peeling back the cover panel, to provide access to the contents. Provisions are included for covering the weakened lines on the inside of the container to prevent leakage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.