Granted Patent
Utility
US 5,458,783 · App. 08/354,238
Supercritical fluid extraction coupled to analytical chromatography system
Inventors:
Joseph Levy, Raymond K. Houck
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: Dec 12, 1994
Inventors
Joseph Levy
Raymond K. Houck
Assignee (at issue)
Suprex 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.