Granted Patent
Utility
US 6,071,408 · App. 09/080,826
Apparatus and method for supercritical fluid extraction
Inventors:
Robert W. Allington, Daniel G. Jameson, Dale A. Davison, Dale L. Clay, Robin R. Winter, Yoossef Tehrani
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: May 18, 1998
Inventors
Robert W. Allington
Daniel G. Jameson
Dale A. Davison
Dale L. Clay
Robin R. Winter
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.