Granted Patent
Utility
US 6,825,359 · App. 10/357,504
Quinomethane compounds
Inventors:
Kenichi Ohkura, Yoshihiro Ueno, Masami Kuroda, Nobuyuki Sekine
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Feb 4, 2003
Inventors
Kenichi Ohkura
Yoshihiro Ueno
Masami Kuroda
Nobuyuki Sekine
Assignee (at issue)
Fuji Electric Imaging Device 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.