Granted Patent
Utility
US 5,502,442 · App. 08/474,809
Method of forming a durable wideband anti-reflection coating for infrared windows
Inventor:
Frank C. Sulzbach
Patented Case
View Patent ↗
Granted: Mar 26, 1996
Filed: Jun 7, 1995
Inventor
Frank C. Sulzbach
Assignee (at issue)
Texas Instruments Incorporated
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.