Granted Patent
Utility
US 6,232,044 · App. 08/159,879
Infrared chopper using binary diffractive optics
Inventors:
Robert C. Gibbons, Samuel R. McKenney, S. Charles Baber, Richard Rugin Chang, Michael C. Bell
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Nov 30, 1993
Inventors
Robert C. Gibbons
Samuel R. McKenney
S. Charles Baber
Richard Rugin Chang
Michael C. Bell
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.