Granted Patent
Utility
US 4,783,191 · App. 07/039,822
Nozzle chamber system for a steam turbine
Inventors:
Walter Halberg, George Chang, David M. Parker
Patented Case
View Patent ↗
Granted: Nov 8, 1988
Filed: Apr 15, 1987
Inventors
Walter Halberg
George Chang
David M. Parker
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.