Granted Patent
Utility
US 5,116,732 · App. 07/405,754
Tetrazolium halide compounds and methods
Inventors:
David J. Brigati, Sreeramulu Nagubandi, Massoud Arvanaghi
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Sep 11, 1989
Inventors
David J. Brigati
Sreeramulu Nagubandi
Massoud Arvanaghi
Assignee (at issue)
Fisher Scientific Company, L.L.C.
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.