Patents by Inventor Walter Schroll

Walter Schroll 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 track segment
    Patent number: D297851
    Type: Grant
    Filed: April 23, 1985
    Date of Patent: September 27, 1988
    Inventor: Walter Schroll