Granted Patent
Utility
US 4,958,985 · App. 07/317,495
Performance low pressure end blading
Inventors:
Joseph Davids, George J. Silvestri, Jr.
Patented Case
View Patent ↗
Granted: Sep 25, 1990
Filed: Mar 1, 1989
Inventors
Joseph Davids
George J. Silvestri, Jr.
Assignee (at issue)
Westinghouse Electric Company LLC
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.