Granted Patent
Utility
US 5,455,003 · App. 08/103,662
Al-Cu-Li alloys with improved cryogenic fracture toughness
Inventors:
Joseph R. Pickens, William T. Tack
Patented Case
View Patent ↗
Granted: Oct 3, 1995
Filed: Aug 10, 1993
Inventors
Joseph R. Pickens
William T. Tack
Assignee (at issue)
LOCKHEED MARTIN CORPORATION
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.