Patents by Inventor Walter J. Schedler

Walter J. Schedler 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).

  • Sound simulator for model steam engine
    Patent number: RE30174
    Abstract: A simulator for mounting in a model steam train engine and adapted to emit sounds representative of a regular steam-driven train engine.
    Type: Grant
    Filed: October 13, 1977
    Date of Patent: December 18, 1979
    Inventor: Walter J. Schedler