Granted Patent
Utility
US 6,371,224 · App. 09/522,134
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Inventors:
Stephen E. Freeman, David J. Krus, Donald J. Moracz, William D. Nielsen, Diane Ryan
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Mar 9, 2000
Inventors
Stephen E. Freeman
David J. Krus
Donald J. Moracz
William D. Nielsen
Diane Ryan
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.