Granted Patent
Utility
US 5,599,976 · App. 08/418,333
Recovery of acetic acid from dilute aqueous streams formed during a carbonylation process
Inventors:
Mark O. Scates, Steven Parker, Jennifer B. Lacy, Russell K. Gibbs, Jr.
Patented Case
View Patent ↗
Granted: Feb 4, 1997
Filed: Apr 7, 1995
Inventors
Mark O. Scates
Steven Parker
Jennifer B. Lacy
Russell K. Gibbs, Jr.
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.