Granted Patent
Utility
US 6,734,203 · App. 10/169,409
Fused imidazolium derivatives
Inventors:
Akira Matsuhisa, Isao Kinoyama, Akira Toyoshima, Takahito Nakahara, Masahiro Takeuchi, Minoru Okada
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Jul 1, 2002
Inventors
Akira Matsuhisa
Isao Kinoyama
Akira Toyoshima
Takahito Nakahara
Masahiro Takeuchi
Minoru Okada
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.