Writing instrument comprising two concentric writing tips
US11124013B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2018 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Sep 17, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K24/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A writing instrument comprising a housing extending in a longitudinal direction and having a radial direction, and first and second concentric writing tips, the second writing tip arranged around the first writing tip, each writing tip received in the housing and able to assume an operating configuration, the housing comprising, at a longitudinal end, a deformable nose at least in the radial direction, the deformable nose comprising at least one slit extending in the longitudinal direction, the deformable nose not being deformed when only the first writing tip is in an operating configuration and the deformable nose being deformed when the second writing tip is in an operating configuration, the deformable nose comprising an exit opening of the first and second writing tips, the diameter of the exit opening being greater than the diameter of the first writing tip and less than that of the second writing tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.