Granted Patent
Utility
US 6,703,131 · App. 09/763,455
Coated article
Inventor:
Hisayuki Kayanoki
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Feb 23, 2001
Inventor
Hisayuki Kayanoki
Assignee (at issue)
Nippon Arc 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.