Granted Patent
Utility
US 5,750,027 · App. 08/804,682
Apparatus and method for supercritical fluid extraction or supercritical fluid chromatography
Inventors:
Robert W. Allington, Henry L. Walters, Daniel G. Jameson, Yoossef Tehrani
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Feb 25, 1997
Inventors
Robert W. Allington
Henry L. Walters
Daniel G. Jameson
Yoossef Tehrani
Assignee (at issue)
Isco, Inc.
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.