Granted Patent
Utility
US 4,386,498 · App. 06/197,378
Method and apparatus for preventing the deposition of corrosive salts on rotor blades of steam turbines
Inventors:
Pang K. Lee, William M. Hickam, William G. Steltz
Patented Case
View Patent ↗
Granted: Jun 7, 1983
Filed: Oct 15, 1980
Inventors
Pang K. Lee
William M. Hickam
William G. Steltz
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.