Granted Patent
Utility
US 4,618,774 · App. 06/639,798
Instrument for measuring levels of concentration of tritium and tritium oxides in air
Inventors:
Marcel Hascal, Adrian Mihai, Robert C. Hanrahan
Patented Case
View Patent ↗
Granted: Oct 21, 1986
Filed: Aug 13, 1984
Inventors
Marcel Hascal
Adrian Mihai
Robert C. Hanrahan
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.