Granted Patent
Utility
US 6,679,613 · App. 09/962,451
Surface light source device
Inventor:
Koji Mabuchi
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: Sep 26, 2001
Inventor
Koji Mabuchi
Assignee (at issue)
SANYO ELECTRIC 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.