Granted Patent
Utility
US 4,199,087 · App. 05/872,272
Apparatus for injection of inert gas to prevent superspeed effect
Inventors:
Eugene A. Golas, William A. Sech, Shri N. Singh
Patented Case
View Patent ↗
Granted: Apr 22, 1980
Filed: Jan 25, 1978
Inventors
Eugene A. Golas
William A. Sech
Shri N. Singh
Assignee (at issue)
United States Steel 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.