Granted Patent
Utility
US 5,679,180 · App. 08/493,610
.gamma. strengthened single crystal turbine blade alloy for hydrogen fueled propulsion systems
Inventor:
Daniel P. DeLuca
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: Jun 22, 1995
Inventor
Daniel P. DeLuca
Assignee (at issue)
UNITED TECHNOLOGIES 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.