Granted Patent
Utility
US 5,452,313 · App. 08/210,481
Optical feedback eliminator
Inventor:
David Fink
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Mar 21, 1994
Inventor
David Fink
Assignee (at issue)
Hughes Aircraft Company
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.