Patents by Inventor Marsha F. Smeltzer

Marsha F. Smeltzer 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).

  • Dental impression tray
    Patent number: 5064371
    Abstract: A dental impression tray particularly for the lower jaw which is designed with arcuate outer walls for the buccal side of the dental arch to locate the arch and has inner lingual walls angled to encircle and avoid contact with any tori growths within the dental arch, thus allowing the tray filled with soft and hardenable material to seat well within the dental arch to obtain a full tooth impression down to and below the gum line.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: November 12, 1991
    Inventor: Marsha F. Smeltzer