Granted Patent
Utility
US 5,674,416 · App. 08/520,203
Arc treatment of metal surfaces
Inventors:
Edward P. Patrick, Philip J. Blakeley, Regis J. Huth, Jr., A. Victor Pajerski, Christopher M. Seaman, Donald J. Spinella, Charles B. Wolf
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Aug 28, 1995
Inventors
Edward P. Patrick
Philip J. Blakeley
Regis J. Huth, Jr.
A. Victor Pajerski
Christopher M. Seaman
Donald J. Spinella
Charles B. Wolf
Assignee (at issue)
Aluminum Company of America
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.