Easy-open package for fluent material
US5009364A · kind A · utility
20Cited by
10References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 11, 1990 |
| Grant date | Apr 23, 1991 |
| Priority date | — |
| Expiry date | Jan 11, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2577/2091
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An easy-open package for a fluent material comprises an upwardly open base vessel having an annular rim, a foil having an outer periphery engaging the rim and formed inward of the periphery with a nonstraight tear line defining a tearout portion, an open tab engaging the portion within the tear line, and respective bonds securing the foil at its periphery to the rim and securing the tab to the portion within the tear line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.