Pen with multiple colors
US11529824B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2021 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | May 14, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K8/18
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A writing instrument, in particular a pen, comprising at least two reservoirs for storing colorants or inks of at least two different colors, characterized by at least one pumping means which is designed to be actuated by at least one finger of a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.