Plastic cap
US4635808A · kind A · utility
26Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1985 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Jan 22, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2401/40
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A plastic bottle cap having a tamper indicating skirt with inwardly extending flaps which move to a position in which they decrease the diameter of the skirt and thus prevent removal of the cap while the skirt is connected to the cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.