Granted Patent
Utility
US 5,284,532 · App. 08/004,471
Elevated temperature strength of aluminum based alloys by the addition of rare earth elements
Inventor:
David J. Skinner
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Jan 14, 1993
Inventor
David J. Skinner
Assignee (at issue)
AlliedSignal, 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.