Patents by Inventor P. J. Biermann

P. J. Biermann 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).

  • Flexible pouring spout
    Patent number: D278981
    Type: Grant
    Filed: May 17, 1983
    Date of Patent: May 28, 1985
    Inventor: P. J. Biermann