Patents by Inventor Stephen J. Flemming

Stephen J. Flemming 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).

  • Boomerang
    Patent number: 4216962
    Abstract: A boomerang comprising a pair of elongate, airfoils coupled together at their midsections to form a cross. Mechanism is provided for releasably coupling the midportions of the airfoils for separation under a predetermined force to normally prevent relative rotation of the airfoils.
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: August 12, 1980
    Inventor: Stephen J. Flemming
  • Boomerang
    Patent number: D256815
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: September 9, 1980
    Inventor: Stephen J. Flemming