Granted Patent
Utility
US 6,794,330 · App. 09/886,145
Exhaust gas purifying catalyst
Inventors:
Hiroshi Tanada, Osamu Nakayama, Keisuke Tashiro, Kinichi Iwachido, Tetsuya Watanabe
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Jun 21, 2001
Inventors
Hiroshi Tanada
Osamu Nakayama
Keisuke Tashiro
Kinichi Iwachido
Tetsuya Watanabe
Assignee (at issue)
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
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.