Granted Patent
Utility
US 6,791,643 · App. 10/452,990
Dual-display liquid crystal display
Inventor:
Li-Sen Chuang
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Jun 3, 2003
Inventor
Li-Sen Chuang
Assignee (at issue)
Toppoly Optoelectronics Corp.
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.