Patents by Inventor Michael Polifka

Michael Polifka 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).

  • Facing panel for facades or the like
    Patent number: D247313
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: February 21, 1978
    Assignee: Construction Specialties, Inc.
    Inventors: Edward C. Hallock, Michael Polifka
  • Facing panel for facades or the like
    Patent number: D247375
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: February 28, 1978
    Assignee: Construction Specialties, Inc.
    Inventors: Edward C. Hallock, Michael Polifka
  • Decorative screen for facades
    Patent number: D249069
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: August 22, 1978
    Assignee: Construction Specialties, Inc.
    Inventor: Michael Polifka