Granted Patent
Utility
US 5,308,698 · App. 07/887,195
Flux for coated welding electrode
Inventors:
Robert A. Bishel, Evan Hinshaw
Patented Case
View Patent ↗
Granted: May 3, 1994
Filed: May 21, 1992
Inventors
Robert A. Bishel
Evan Hinshaw
Assignee (at issue)
INCO Alloys International, 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.