Granted Patent
Utility
US 5,536,913 · App. 08/335,950
Submerged-arc welding apparatus
Inventors:
William Weidner, William Weidner, Giuseppe Picione
Patented Case
View Patent ↗
Granted: Jul 16, 1996
Filed: Nov 8, 1994
Inventors
William Weidner
William Weidner
Giuseppe Picione
Assignee (at issue)
Harnischfeger Corporation
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.