Granted Patent
Utility
US 4,664,701 · App. 06/819,501
Method and plant for fully continuous production of steel strip from ore
Inventor:
Semyon E. Royzman
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Jan 15, 1986
Inventor
Semyon E. Royzman
Assignee (at issue)
BLAW-KNOX 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.