Patents by Inventor Steven E. Spirer

Steven E. Spirer 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).

  • Cutting guide protractor
    Patent number: D363239
    Type: Grant
    Filed: February 9, 1995
    Date of Patent: October 17, 1995
    Inventors: Steven E. Spirer, John A. Schneider
  • Dowel punch
    Patent number: D371302
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: July 2, 1996
    Inventor: Steven E. Spirer