Granted Patent
Utility
US 4,282,741 · App. 06/033,257
Device and method for detecting alkali metals
Inventor:
Andrew S. Zarchy
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Apr 25, 1979
Inventor
Andrew S. Zarchy
Assignee (at issue)
General Electric Company
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.