Granted Patent
Utility
US 5,832,153 · App. 08/666,217
Method and system for reducing unwanted effects of back reflections between two lenses in an optical system
Inventor:
Gary S. Duck
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Jun 20, 1996
Inventor
Gary S. Duck
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.