Opening and closing means for a container top
US4442950A · kind A · utility
47Cited by
2References
12Claims
0Family size
Inventor
Key dates
| Filing date | Jan 24, 1983 |
| Grant date | Apr 17, 1984 |
| Priority date | — |
| Expiry date | Jan 24, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D17/4014
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A top for initially closing a container, so as to seal same and preserve the contents thereof. The top includes a tab, selectively operable for forming an opening in the top, or for reclosing and resealing, or reopening, such opening. Such selective operation of the tab enables access to the contents of the container, or preservation of or access to the remaining contents of the container, as desired by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.