Patents Assigned to Flonto Corp.
  • Opening and closing device for capless retractable marker pen
    Patent number: 6981812
    Abstract: An opening and closing device for a capless retractable marker pen is disclosed. The opening and closing device is based on a two-stage design for achieving the purpose of protracting and retracting a writing tip. The opening and closing device for the capless retractable marker pen of the present invention is manufactured easily and assembled conveniently, so as to greatly increase the processing speed and yield.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: January 3, 2006
    Assignee: Flonto Corp.
    Inventor: Yung-Chieh Hsieh