Patents by Inventor Abraham Rand

Abraham Rand 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).

  • Measuring instruments particularly useful as dental implements
    Patent number: 4979898
    Abstract: Two small portable measuring instruments, particularly useful as dental implements, comprises a housing, a stem displaceable within a bore in the housing, a fingerpiece coupled to one end of the stem and engageable by the user for displacing the stem, the opposite end of the stem being displaceable through an opening in the housing, an electrical measuring circuit for measuring the displacement of the stem, and a display for displaying the displacement of the stem. One embodiment, is described wherein the instrument is used as a dental probe for measuring the depth of a dental pocket, and a second embodiment is described wherein the instrument is used to measure the mobility of a tooth.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: December 25, 1990
    Inventor: Abraham Rand