Granted Patent
Utility
US 6,790,808 · App. 10/365,007
Exhaust gas purifying catalyst
Inventors:
Hiroshi Tanada, Osamu Nakayama, Keisuke Tashiro, Kinichi Iwachido, Tetsuya Watanabe
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Feb 12, 2003
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.