Patent · US Active

Direct-fluid-supply writing implement

US7578631B2 · kind B2 · utility

8Cited by
8References
43Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 14, 2005
Grant dateAug 25, 2009
Priority date—
Expiry dateMay 30, 2027

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB43K8/06
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

A direct-fluid-supply writing implement has a pentip,

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.