Granted Patent
Utility
US 5,630,889 · App. 08/408,426
Vanadium-free aluminum alloy suitable for extruded aerospace products
Inventor:
Lynette M. Karabin
Patented Case
View Patent ↗
Granted: May 20, 1997
Filed: Mar 22, 1995
Inventor
Lynette M. Karabin
Assignee (at issue)
Aluminum Company of America
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.