Plastic bag for vacuum sealing
USRE34929E · kind E · reissue
74Cited by
17References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1993 |
| Grant date | May 9, 1995 |
| Priority date | — |
| Expiry date | Jan 22, 2013 |
Classification
- Technology area (CPC —)General
Abstract
A plastic bag for vacuum packaging comprises an inner layer of heat sealable thermoplastic material which incorporates interconected air channels on its inner surface and an outer layer of gas impermeable material. Optionally, one or more intermediate layers may be included between the inner layer and the outer layer. The inner layer and the outer layer, and any intermediate layers, are joined together such that no air pockets exist between the inner layer and the outer layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.