Patents by Inventor Norman M. Mayer

Norman M. Mayer 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).

  • Oral measuring device
    Patent number: 4997368
    Abstract: An oral measuring device is presented which is formed from plastic or other lightweight substance for insertion in the mouth between the front teeth. The device includes a series of top and bottom arcuately shaped grooves from receiving the teeth. Once the insert has been positioned as far inwardly into the mouth as possible, indicia along the side of the measuring device provides a readily visible measurement of the oral opening.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: March 5, 1991
    Inventors: Norman M. Mayer, Joseph L. Miller