Granted Patent
Utility
US 5,300,685 · App. 07/799,455
Removal of halide impurities from organic liquids
Inventors:
Mark O. Scates, R. Jay Warner, G. Paull Torrence
Patented Case
View Patent ↗
Granted: Apr 5, 1994
Filed: Nov 25, 1991
Inventors
Mark O. Scates
R. Jay Warner
G. Paull Torrence
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.