Granted Patent
Utility
US 5,551,997 · App. 08/221,374
Beryllium-containing alloys of aluminum and semi-solid processing of such alloys
Inventors:
James M. Marder, Warren J. Haws
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: Mar 31, 1994
Inventors
James M. Marder
Warren J. Haws
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.