Patents Assigned to Institute of Applied Biology Charitable Research Trust
  • Pen with retractable point
    Patent number: 4266881
    Abstract: The pen consists of two pen bodies, preferably identical, which interlock with each other in a plurality of longitudinal positions. Each of the pen bodies is preferably provided with a seat for positioning a ball point cartridge therein. Movement of the pen bodies will cause the cartridges seated therein to be protracted or retracted.
    Type: Grant
    Filed: October 18, 1978
    Date of Patent: May 12, 1981
    Assignee: Institute of Applied Biology Charitable Research Trust
    Inventor: Harry E. Rubens