Granted Patent
Utility
US 6,444,058 · App. 09/208,963
High toughness plate alloy for aerospace applications
Inventors:
John Liu, Robert W. Westerlund, Gary H. Bray, Terrence N. Thom, Dhruba J. Chakrabarti
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Dec 10, 1998
Inventors
John Liu
Robert W. Westerlund
Gary H. Bray
Terrence N. Thom
Dhruba J. Chakrabarti
Assignee (at issue)
ALCOA 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.