Granted Patent
Utility
US 5,993,574 · App. 08/965,878
Lean, high conductivity, relaxation-resistant beryllium-nickel-copper alloys
Inventors:
John C. Harkness, Shelley J. Wolf
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Nov 7, 1997
Inventors
John C. Harkness
Shelley J. Wolf
Assignee (at issue)
BRUSH WELLMAN, 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.