Pop-a-top canning jar lids
US4159061A · kind A · utility
10Cited by
5References
2Claims
0Family size
Inventors
Key dates
| Filing date | Apr 25, 1977 |
| Grant date | Jun 26, 1979 |
| Priority date | — |
| Expiry date | Apr 25, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D17/4011
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A closure assembly for a glass canning jar has an internally threaded skirt portion and a transverse lid portion having a rim section separated from a center section by a continuous weakened region in the form of a surface groove. A manual pull member is mounted on the center section. The transverse lid portion may be integral with the skirt or may comprise a separate member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.