Sealed lipstick container
US5863144A · kind A · utility
6Cited by
9References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1997 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Jul 25, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D40/06
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A lipstick container cover has a cup-shaped insert which sealingly telescopes over a sealed base assembly. The cover insert has an inward peripheral rib which makes line sealing contact with the sleeve. A bump formed on the sleeve raises the rib to vent pressure caused either by pushing the cover on the lipstick container or pressure build-up due to vaporizing solvent after the cover is fully installed. Venting the pressure in the container avoids the lifting off of the cover after installation. Otherwise such lifting unseals the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.