Granted Patent
Utility
US 5,135,713 · App. 07/588,410
Aluminum-lithium alloys having high zinc
Inventors:
Roberto J. Rioja, James T. Staley
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Sep 26, 1990
Inventors
Roberto J. Rioja
James T. Staley
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.