Patents by Inventor Darrell J. Lehmann

Darrell J. Lehmann 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).

  • Fish hook sharpener
    Patent number: D271771
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: December 13, 1983
    Inventor: Darrell J. Lehmann
  • Panel mounted fish hook sharpener
    Patent number: D308325
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: June 5, 1990
    Inventor: Darrell J. Lehmann