Granted Patent
Utility
US 5,296,210 · App. 07/998,983
Stabilized sodium dithionite
Inventor:
Donald M. Oglesby
Patented Case
View Patent ↗
Granted: Mar 22, 1994
Filed: Dec 31, 1992
Inventor
Donald M. Oglesby
Assignee (at issue)
Hoechst Celanese 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.