Patents by Inventor Richard K. Robertson

Richard K. Robertson 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).

  • Cap insert
    Patent number: 5987649
    Abstract: A cap insert comprises an elongated sheet which is flexible but sufficiently rigid for use as a shaping insert in a billed cap. The sheet is substantially planar in a relaxed state and includes a central portion, opposing tapered portions, and opposing leg portions. The sheet fits inside a billed cap around the sweatband, and successfully returns an old billed cap to its proper shape.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: November 23, 1999
    Inventor: Richard K. Robertson