IP Library › Granted Patent US 5,907,222
Granted Patent Utility
US 5,907,222 · App. 08/967,442

High efficiency backlighting system for rear illumination of electronic display devices

Inventors: J. Michael Lengyel, Loy L. Spears
Patented Case View Patent ↗
Granted: May 25, 1999 Filed: Nov 11, 1997
Inventors
J. Michael Lengyel
Loy L. Spears
Assignee (at issue)
Litton Systems, Inc.

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,907,222
App. No.
08/967,442
Filed
1997-11-11
Granted
1999-05-25
Kind
A