Granted Patent
Utility
US 6,055,347 · App. 08/917,567
Multi-pass optical filter
Inventors:
Jinghui Li, Neil Teitelbaum
Patented Case
View Patent ↗
Granted: Apr 25, 2000
Filed: Aug 26, 1997
Inventors
Jinghui Li
Neil Teitelbaum
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.