Patents by Inventor Doris A. Heikkinen

Doris A. Heikkinen 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: 6758459
    Abstract: The weed puller comprises foot block molded out of plastic material with tines molded into a forward end and with an aperture formed in its upper surface for receiving a handle. In the embodiment disclosed, the foot block comprises two opposite facing sides and six edge surfaces which comprises a front surface, an upper surface, a fulcrum transverse to the upper surface and which comprises a rear surface, a bottom surface, and a forward fulcrum surface. A surface also extends from the forward fulcrum surface to the first end. The tines are molded into the block and extend out of the front surface.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: July 6, 2004
    Inventors: Edward A. Heikkinen, Doris A. Heikkinen