Patents by Inventor Edward F. John

Edward F. John 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 floss dispenser
    Patent number: 5156311
    Abstract: A dental floss dispenser comprising a molded unitary plastic housing composed of three main sections connected by two hinges which permits the dispenser to be easily opened and dental floss contained therein to be replaced by the user. A front section of the molded unitary plastic housing contains an opening and a molded post adjacent to the opening. A window assembly, molded of a transparent plastic, is engaged with the molded unitary plastic housing through placement of a hollow shaft having an axial bore capable of receiving the molded post over the molded post.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: October 20, 1992
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: John W. Spencer, Jr., Edward F. John