Granted Patent
Utility
US 4,301,591 · App. 06/059,831
Method of manufacturing infra-red detector elements
Inventor:
Richard B. Withers
Patented Case
View Patent ↗
Granted: Nov 24, 1981
Filed: Jul 23, 1979
Inventor
Richard B. Withers
Assignee (at issue)
U.S. Philips Corporation
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.