Granted Patent
Utility
US 5,733,358 · App. 08/526,448
Process and apparatus for the manufacture of steel from iron carbide
Inventors:
Gordon H. Geiger, Asish K. Sinha, Achilles Vassilicos, Zhiyou Du
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Sep 11, 1995
Inventors
Gordon H. Geiger
Asish K. Sinha
Achilles Vassilicos
Zhiyou Du
Assignee (at issue)
USX Corporation and Praxair Technology, Inc.
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.