Method of making a pouch usable as a cup
US4196034A · kind A · utility
11Cited by
7References
20Claims
0Family size
Inventor
Key dates
| Filing date | Mar 2, 1977 |
| Grant date | Apr 1, 1980 |
| Priority date | — |
| Expiry date | Mar 2, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1049
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pouch usable as a cup comprising a rigid outer sheet and a flexible inner sheet laminated on the inner surface of the outer sheet which are folded to form a pouch. The bottom of the inner sheet is not adhered to the bottom of the outer sheet whereby the outer sheet is deformed by pressing the side edges thereof to expand the bottom of the inner sheet to form a cup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.