Granted Patent
Utility
US 5,847,871 · App. 08/223,190
Monolithic multifunctional optical elements
Inventors:
David S. Sumida, Dennis C. Jones
Patented Case
View Patent ↗
Granted: Dec 8, 1998
Filed: Apr 5, 1994
Inventors
David S. Sumida
Dennis C. Jones
Assignee (at issue)
Raytheon 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.