Patents by Inventor Norman J. Ploszaj

Norman J. Ploszaj 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).

  • Bottle scraper
    Patent number: D243383
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: February 15, 1977
    Inventor: Norman J. Ploszaj