Granted Patent
Utility
US 4,432,595 · App. 06/297,774
Optical element for photographic radiometer
Inventor:
Monis J. Manning
Patented Case
View Patent ↗
Granted: Feb 21, 1984
Filed: Aug 31, 1981
Inventor
Monis J. Manning
Assignee (at issue)
Polaroid 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.