Patents by Inventor Joseph Gerstenbacher

Joseph Gerstenbacher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4184682
    Abstract: A game projectile of unique contour adapted to be manually thrown in a plurality of trajectories. The combination of elements of the game projectile allows for minimal displacement path of the projectile subsequent to being dynamically impacted by a bat or stick member. The game projectile includes a first hemispherical contoured member which is formed of a resilient composition and is substantially symmetrical about a first vertically directed axis line. The game projectile further includes a second hemispherically contoured member having a radius less than the radius of the first hemispherically contoured member. The second hemispherically contoured member is formed in one piece formation with the first hemispherically contoured member on an external surface thereof in order to provide the pitcher with various gripping mechanisms to control the trajectory of the game projectile.
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: January 22, 1980
    Inventors: James Collins, Joseph Gerstenbacher
  • Patent number: D257363
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: October 14, 1980
    Inventors: James Collins, Joseph Gerstenbacher