Granted Patent
Utility
US 6,130,637 · App. 09/135,617
Measuring the thickness of hot slag in steelmaking
Inventors:
Gregory A. Meszaros, Roger Marquart, David J. Walker, John G. Estocin, Frank L. Kemeny
Patented Case
View Patent ↗
Granted: Oct 10, 2000
Filed: Aug 18, 1998
Inventors
Gregory A. Meszaros
Roger Marquart
David J. Walker
John G. Estocin
Frank L. Kemeny
Assignee (at issue)
USX 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.