Granted Patent
Utility
US 5,520,243 · App. 08/284,466
Metal strip casting
Inventors:
John Freeman, Lazar Strezov, Steve Osborn
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: Aug 15, 1994
Inventors
John Freeman
Lazar Strezov
Steve Osborn
Assignees (at issue)
ISHIKAWAJIMA-HARIMA HEAVY INDUSTRIES CO., LTD.
BHP Steel (JLA) Pty. Ltd.
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.