Perforated film with prepunched tube holes
US5549959A · kind A · utility
21Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 20, 1994 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Jun 20, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24273
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A package comprising a central tube, a product wound around the central tube and a perforated film having tube holes prepunched into the film is disclosed. This perforated prepunched tube hole film allows for substantially all of the product exposed surface to be covered by the perforated film but leaves the central tube ends uncovered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.