Patents by Inventor Jon A. Mathisrud

Jon A. Mathisrud 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).

  • Ear curette
    Patent number: 4044770
    Abstract: An ear curette which comprises, in combination, a generally resilient self-supporting flexible gripping shaft with a wire loop secured to the distal end thereof. The gripping shaft is fabricated from a substantially continuous solid shaft, with the distal end portion having a diameter which is significantly reduced from that of the proximal end segment so as to provide a generally rigid proximal end segment and a generally flexible distal end segment. Preferably, a tapered step is utilized to separate the proximal end from the distal end.
    Type: Grant
    Filed: April 4, 1975
    Date of Patent: August 30, 1977
    Assignee: Ocelco, Inc.
    Inventors: John J. Ocel, Donald J. Ocel, Jon A. Mathisrud