Granted Patent
Utility
US 5,543,599 · App. 08/355,584
Electron discharge machining apparatus and method
Inventors:
William G. Cole, Jeffrey E. Hydeman, James M. Gunsallus, Jr., Qui V. Le
Patented Case
View Patent ↗
Granted: Aug 6, 1996
Filed: Dec 14, 1994
Inventors
William G. Cole
Jeffrey E. Hydeman
James M. Gunsallus, Jr.
Qui V. Le
Assignee (at issue)
Westinghouse Electric Company LLC
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.