Granted Patent
Utility
US 6,251,267 · App. 08/215,259
Apparatus for supercritical fluid extraction
Inventors:
Robert W. Allington, Daniel G. Jameson, Robin R. Winter, Dale L. Clay
Patented Case
View Patent ↗
Granted: Jun 26, 2001
Filed: Mar 21, 1994
Inventors
Robert W. Allington
Daniel G. Jameson
Robin R. Winter
Dale L. Clay
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.