Granted Patent
Utility
US 6,673,166 · App. 10/027,850
Ferritic stainless steel sheet having good workability
Inventors:
Manabu Oku, Yoshitomo Fujimura, Yoshiaki Hori, Toshirou Nagoya, Yasutoshi Kunitake, Takeo Tomita
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Dec 21, 2001
Inventors
Manabu Oku
Yoshitomo Fujimura
Yoshiaki Hori
Toshirou Nagoya
Yasutoshi Kunitake
Takeo Tomita
Assignee (at issue)
Nisshin Steel Co., 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.