Granted Patent
Utility
US 6,190,468 · App. 08/916,468
Metamorphic processing of alloys and products thereof
Inventor:
Edward B. Longenberger
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Aug 21, 1997
Inventor
Edward B. Longenberger
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.