Granted Patent
Utility
US 6,767,112 · App. 10/156,286
Projection lamp with led matrix panel
Inventor:
Jiahn-Chang Wu
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: May 29, 2002
Inventor
Jiahn-Chang Wu
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.