Granted Patent
Utility
US 4,845,332 · App. 07/097,186
Galvanneal induction furnace temperature control system
Inventors:
David G. Jancosek, Michael Demorotski, Gregory Noelting
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Sep 16, 1987
Inventors
David G. Jancosek
Michael Demorotski
Gregory Noelting
Assignee (at issue)
National 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.