Granted Patent
Utility
US 6,375,804 · App. 09/829,502
Tertiary butyl acetate recovery
Inventor:
Vijai P. Gupta
Patented Case
View Patent ↗
Granted: Apr 23, 2002
Filed: Apr 10, 2001
Inventor
Vijai P. Gupta
Assignee (at issue)
Arco Chemical Technology, L.P.
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.