Container closure members
US4212409A · kind A · utility
39Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1979 |
| Grant date | Jul 15, 1980 |
| Priority date | — |
| Expiry date | Apr 9, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C37/0057
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A closure member is provided for closing a container opening wherein the closure member includes a central closure panel, a circumferential rim, and a circumferential edge flange having a circumferential line of weakness about which the edge flange can be folded to abut the outer surface of the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.