Granted Patent
Utility
US 6,467,533 · App. 09/694,263
Machine and method for continuous casting of steel
Inventors:
Toshihiko Murakami, Masahiko Oka, Hirohisa Kikuchi, Atsushi Murata, Takashi Usui
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Oct 24, 2000
Inventors
Toshihiko Murakami
Masahiko Oka
Hirohisa Kikuchi
Atsushi Murata
Takashi Usui
Assignee (at issue)
SUMITOMO METAL INDUSTRIES, 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.