Writing instrument
US6626600B1 · kind B1 · utility
26Cited by
30References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2000 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Sep 13, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K23/124
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The writing instrument includes a cap and a barrel. The cap includes threads which engage the threads on the barrel. In addition, the cap includes protrusions which engage protrusions on the barrel. The threads are designed so that the cap will engage the stop surface in approximately one third of a revolution. When the protrusions move past each other, the user perceives a tactile and/or audible indication. This indication advises the user that the cap has been fully attached to the barrel. In addition, the cap includes ribs on the exterior surface to assist the user in grasping the cap and in rotating the cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.