Granted Patent
Utility
US 4,924,070 · App. 07/392,157
Apparatus for controlled irradiation
Inventor:
Joshua Friedman
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: Aug 10, 1989
Inventor
Joshua Friedman
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.