Patents by Inventor Peter L. Droppelman

Peter L. Droppelman 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).

  • Container lid
    Patent number: D275181
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: August 21, 1984
    Inventors: I. Thomas Jeffries, Peter L. Droppelman