Granted Patent
Utility
US 5,115,770 · App. 07/802,594
Aluminum casting alloy for high strength/high temperature applications
Inventors:
Chia M. Yen, Walter J. Evans
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Dec 5, 1991
Inventors
Chia M. Yen
Walter J. Evans
Assignee (at issue)
Ford Motor Company
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.