Granted Patent
Utility
US 5,903,005 · App. 08/604,041
Aspherical elements for infrared imaging system
Inventor:
Richard R. Smith
Patented Case
View Patent ↗
Granted: May 11, 1999
Filed: Feb 20, 1996
Inventor
Richard R. Smith
Assignee (at issue)
HUGHES ELECTRONICS LIMITED
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.