Granted Patent
Utility
US 6,619,807 · App. 10/014,150
Modularized light-guiding apparatus and manufacturing method
Inventor:
Po-Hua Fang
Patented Case
View Patent ↗
Granted: Sep 16, 2003
Filed: Dec 7, 2001
Inventor
Po-Hua Fang
Assignee (at issue)
Umax Data 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.