Hold-open bag top
US5044774A · kind A · utility
75Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Oct 16, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D33/30
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A thermoplastic bag having a flexible top has a stiff strip around the mouth of the bag which when rolled outward bends to hold open the bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.