Granted Patent
Utility
US 6,280,792 · App. 09/407,304
Surface-treating process using support member having plate-like elements
Inventors:
Yoshimi Tochishita, Yoshio Fujiwara, Yoshihiro Asagai, Ken Ohtagaki
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Sep 29, 1999
Inventors
Yoshimi Tochishita
Yoshio Fujiwara
Yoshihiro Asagai
Ken Ohtagaki
Assignee (at issue)
Sumitomo Special Metals 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.