Writing instrument with fluid-containing barrel
US6910824B2 · kind B2 · utility
5Cited by
11References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2003 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Jul 21, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K29/10
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A promotional writing instrument includes elongated first and second barrel portions. The second barrel portion is transparent and hollow and includes an open end and an opposite closed end. A fluid is disposed within the hollow second barrel portion and is viewable through the transparent second barrel portion. A plug seals the second barrel portion such that the fluid is prevented from escaping from the hollow second barrel portion. The plug is configured so as not to contact the inside surface of the first barrel portion even under flexure of the first and second barrel portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.