Multi-piece flat top container
US4927075A · kind A · utility
12Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1989 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Jul 3, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/0272
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A flat top, thermoplastic coated, paperboard container including a separate cover member and a membrane-type seal, with corner gussets for providing (1) a liquid tight corner construction and (2) top strength and rigitidy for convenient commercial distribution and consumer use. The cover member serves only to protects the membrane, and need only be minimally tack-sealed to the structure to withstand transportation stresses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.