Granted Patent
Utility
US 6,524,376 · App. 09/769,545
Anticorrosive agent
Inventors:
Hidemitsu Aoki, Tatsuya Koito, Kenichi Nakabeppu
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Jan 25, 2001
Inventors
Hidemitsu Aoki
Tatsuya Koito
Kenichi Nakabeppu
Assignee (at issue)
NEC CORPORATION
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.