Bottle stopper with inviolability device
US4185747A · kind A · utility
23Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1977 |
| Grant date | Jan 29, 1980 |
| Priority date | — |
| Expiry date | Mar 14, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D39/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Bottle stopper is provided with rupturable wall section which is placed under stress when the stopper is removed from the bottle but not when the stopper is inserted in the bottle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.