Patents by Inventor Dan Mickelson

Dan Mickelson 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).

  • Mold apparatus
    Patent number: 4379687
    Abstract: A vacuum forming mold for reshaping sheets of thermoplastic material is provided with means to impart indicia to the articles produced. Such indicia can be molded into the article by providing interchangeable members which are insertable and removeable from the mold. By arranging the members in different combinations any desired numbering can be obtained.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: April 12, 1983
    Inventors: Robert E. Wilson, Dan Mickelson