Granted Patent
Utility
US 5,709,463 · App. 08/708,100
Backlighting for bright liquid crystal display
Inventor:
Dale J. Igram
Patented Case
View Patent ↗
Granted: Jan 20, 1998
Filed: Aug 13, 1996
Inventor
Dale J. Igram
Assignee (at issue)
DELCO ELECTRONICS CORPORATION
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.