Patents by Inventor Janice S. Rosenthal

Janice S. Rosenthal 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).

  • Toy escalator
    Patent number: 4087932
    Abstract: A toy escalator for use with a doll, the escalator having an inclined base with side rails along opposite edges thereof and a stair member slidable the length of the base between the rails, the stair member being provided with a doll leg engaging fixture to retain the doll in a substantially upright position during operation of the escalator. Manual means are provided by having a string connected to the stair member, the string being operable through an aperture in the upper end of the base for moving the stair member.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: May 9, 1978
    Assignee: Mattel, Inc.
    Inventors: Janice S. Rosenthal, Jurgis Sapkus