Disposable thermally insulated cup and blank therefor
US7938313B1 · kind B1 · utility
4Cited by
85References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 9, 2009 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Mar 23, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2481
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A container blank comprises at least one substrate layer made of disposable material and at least one film layer disposed substantially over the substrate layer and having at least one portion adapted to shrink away from the substrate layer upon application of heat. The shrunk film layer portion is adapted to thermally insulate the substrate layer located substantially behind the shrunk film layer portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.