Granted Patent
Utility
US 5,781,230 · App. 08/790,481
Method and apparatus for illuminating translucent and semi-transparent material
Inventors:
Hung Nguyen, Ralph A. Treder
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Jan 29, 1997
Inventors
Hung Nguyen
Ralph A. Treder
Assignee (at issue)
LUCENT TECHNOLOGIES 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.