Patents by Inventor Donald G. Costar

Donald G. Costar 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).

  • Combination handrake, scoop, grasping tool and method of use
    Patent number: 5359840
    Abstract: A one hand operable grasping tool having extended and crossing tines, or raking members, that transform the tool into a small one hand operable rake when in a closed position.
    Type: Grant
    Filed: January 4, 1994
    Date of Patent: November 1, 1994
    Inventor: Donald G. Costar
  • Offset denture brush
    Patent number: 5014383
    Abstract: A brush apparatus consisting of a planar member with a plurality of bristles affixed to a body and handle unit whereby the handle is parallel to and axially offset from the centerline axis of the said planar member.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: May 14, 1991
    Inventor: Donald G. Costar