Granted Patent
Utility
US 4,498,326 · App. 06/499,103
Apparatus and process for forming articles by heading
Inventors:
David S. Brandt, Samuel J. Costello
Patented Case
View Patent ↗
Granted: Feb 12, 1985
Filed: May 27, 1983
Inventors
David S. Brandt
Samuel J. Costello
Assignee (at issue)
ALLIED CONSULTING, INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.