Bag closure
US3972469A · kind A · utility
3Cited by
2References
6Claims
0Family size
Inventor
Key dates
| Filing date | Apr 3, 1975 |
| Grant date | Aug 3, 1976 |
| Priority date | — |
| Expiry date | Apr 3, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/153
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A bag closure securable around the neck of a flexible bag has an elongated strip of material with opposite end portions connected by a pair of laterally spaced flexible ribbon portions. The strip is of synthetic plastic material, and the thickness of the connecting ribbon portions is substantially less than the thickness of the end portions. The ribbon portions are substantially molecularly oriented in the direction of their length, and the end portions are not so molecularly oriented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.