Granted Patent
Utility
US 6,312,534 · App. 08/971,062
High strength cast aluminum-beryllium alloys containing magnesium
Inventor:
Fritz C. Grensing
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Nov 14, 1997
Inventor
Fritz C. Grensing
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.