Granted Patent
Utility
US 6,435,686 · App. 09/512,216
Light conducting plate for a back lighting device and back lighting device
Inventors:
Takumi Gotou, Masatoshi Yamamoto, Shuichi Fujiyoshi
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Feb 24, 2000
Inventors
Takumi Gotou
Masatoshi Yamamoto
Shuichi Fujiyoshi
Assignee (at issue)
The Ohtsu Tire & Rubber 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.